9 Best Purple Grow Light Bulbs (November 2026)
The best purple grow light bulbs include the 6 Pack BlueX LED A19 Purple Light for multi-fixture purple lighting, the GE Grow Lights for Indoor Plants for natural-looking plant lighting, and the Bluex Bulbs 2 Pack LED Par38 Flood for dimmable purple flood lighting.
On this page (5 sections)
The best purple grow light bulb for most targeted supplemental lighting is the 6 Pack BlueX LED A19 Purple Light. It combines an E26 base, 9W power, 850 lumens and 6 bulbs for several standard fixtures.
This pick suits growers who want visible purple light in more than one place at the same time. Six bulbs let you place matching light over a shelf, a window area or small groups of plants without buying separate packs.
The A19 shape is familiar in many household lamps. That makes it a straightforward choice for standard fixtures, provided the bulb fits the shade and the socket is rated for an E26 bulb.
At 9W with 850 lumens per bulb, the output is modest compared with flood style purple bulbs. It works best as supplemental light close to the plant rather than as the only light for a large area.
Purple color alone does not confirm a balanced spectrum for every plant. Seedlings, leafy greens and flowering plants may need a more defined red blue or full spectrum design for stronger growth support.
Check the plant type and growth stage before deciding how much light to provide. Distance from the bulb, hours of use and the surrounding room light all affect the result in daily use.
For a broader explanation of color bands and plant use, read our grow light spectrum guide. The guide helps you compare purple light with other spectra more clearly.
If you want white light instead, our Best Full Spectrum Grow Light guide compares a different style of setup. That route suits rooms where a purple glow would be distracting or hard to work under.
Our picks at a glance
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1
Best for multi-fixture purple lighting6 Pack BlueX LED A19 Purple Light
9.7/10 our score
See it on Amazon -
2
Best for natural-looking plant lightingGE Grow Lights for Indoor Plants
9.5/10 our score
See it on Amazon -
3
Best for dimmable purple flood lightingBluex Bulbs 2 Pack LED Par38 Flood
9.4/10 our score
See it on Amazon
- 4
Check itSANSI 5W Dimmable Grow Light Bulb
Best for adjustable full-spectrum control - 5
Check itBriignite 2 Pack LED Grow Light Bulb
Best for broad full-spectrum coverage - 6
Check itSANSI LED Grow Light Bulbs 3-Pack
Best for a 3-bulb full-spectrum setup - 7
Check itALIDE Led Grow Light Bulbs for Indoor
Best for mixed red-blue plant lighting - 8
Check it2 Pack BlueX LED A21 Purple Light
Best for larger purple A21 bulbs - 9
Check itGonhom PAR38 Flood Lights Outdoor
Best for outdoor purple flood effects
The best purple grow light bulbs for indoor plants
The best choice depends on whether you want purple color, a balanced plant spectrum or adjustable control. The products below are ordered by score, with purple bulbs and red-blue alternatives compared for different indoor growing needs.
6 Pack BlueX LED A19 Purple Light: Best for multi-fixture purple lighting
- 6 bulbs
- 9W LED
- 850 lumens
- E26 base
- Non-dimmable
This 6-pack gives you several E26 purple bulbs for a group of fixtures. The A19 shape, 9W power and 850-lumen output suit general supplemental lighting where purple color is wanted.
Pros
- 6 bulbs in one pack
- E26 base
- 850-lumen output
Cons
- Non-dimmable
- Purple light is not a balanced full-spectrum option
The 6 Pack BlueX LED A19 Purple Light is the strongest match for shoppers who specifically want purple bulbs in several fixtures. Six bulbs make it easier to light a group of plants, a shelf or multiple rooms without mixing bulb shapes.
Each bulb uses 9W and has an 850-lumen output. The A19 shape and E26 base match common household lamp formats, so measure the fixture opening and shade before installing them.
These bulbs are non-dimmable. That makes the setup simple, but you cannot lower the output from a dimmer switch.
Set up is simple because there is no extra control to learn. Screw each bulb into a suitable E26 fixture and switch it on at a distance that suits the plant.
Bluex Bulbs also gives the bulbs a stated operating life of up to 10,000 hours. That long life reduces how often you need to replace bulbs in hard to reach fixtures.
The purple light is useful when appearance matters as much as supplemental light. It does not replace checking a plant's broader lighting needs, especially for seedlings, leafy greens or flowering plants that need a more defined spectrum.
This pack suits decorative plant areas and targeted supplemental use. For plant focused growth, compare it with red blue and full spectrum bulbs before you commit.
GE Grow Lights for Indoor Plants: Best for natural-looking plant lighting
- 2 BR30 bulbs
- 9W LED
- Balanced red-blue spectrum
- 16 PPF
- 25,000-hour life
GE's BR30 bulbs use a balanced red-blue spectrum while keeping a more natural room appearance than purple bulbs. They suit seeds, greens, herbs and flowering plants.
Pros
- Balanced red-blue spectrum
- Natural-looking light
- 25,000-hour operating life
Cons
- Only 2 bulbs
- Indoor use
The GE Grow Lights for Indoor Plants is the better fit when you want plant-focused red-blue light without a purple room. The 2-pack uses BR30 bulbs with a balanced red-blue spectrum and a stated output of 16 PPF.
Each bulb uses 9W and has a 25,000-hour operating life. GE describes the bulbs for seeds, greens, herbs and flowering plants, including plants across different growth stages.
The BR30 shape spreads light differently from the narrower PAR20 bulbs below. Its 110-degree beam can suit a shelf or plant group where you want more coverage from each fixture.
This is an indoor bulb, so use it in a suitable indoor lamp or fixture. The pair is a strong alternative when you like the plant-light purpose of purple grow bulbs but prefer a more natural-looking room.
The wattage stays low for daily use. That can suit a kitchen shelf or office corner where a bulb runs for many hours.
Fit matters more than the number of bulbs in this pack. Check that the BR30 bulb clears the shade and that the fixture can hold its size without crowding the plant.
Indoor only use keeps the choice simple. Place it in a dry room and manage the light schedule alongside water and temperature needs.
Bluex Bulbs 2 Pack LED Par38 Flood: Best for dimmable purple flood lighting
- 2 PAR38 bulbs
- 18W LED
- 1,500 lumens
- Dimmable
- E26 base
These PAR38 bulbs provide a stronger purple flood-light format with dimming. Choose them when a wide decorative fixture or larger plant area needs adjustable purple light.
Pros
- Dimmable
- 1,500 lumens
- Indoor and outdoor use
Cons
- Only 2 bulbs
- Purple spectrum is less balanced for plant growth
The Bluex Bulbs 2 Pack LED Par38 Flood suits a larger fixture or a spot where you want purple flood lighting with dimming. Each 18W bulb produces a stated 1,500 lumens and uses an E26 base.
PAR38 is a larger flood-light format than A19. Check the fixture depth and shade opening before ordering, especially if the bulb will sit inside an enclosed housing.
The dimmable design lets you adjust the purple effect instead of using full output all the time. Bluex Bulbs also gives a stated operating life of up to 10,000 hours.
Dimming helps when the plant sits close to the fixture. You can lower the output instead of moving the lamp every time the plant grows taller.
This pair is more useful for a broad purple wash than for a carefully controlled plant-light plan. Choose it when the fixture, coverage and adjustable color effect matter most.
Indoor and outdoor use gives it flexibility. Use a suitable fixture for the location and keep the bulb clear of leaves and flammable material.
The 1,500 lumen output suits a larger area than a small A19 bulb. Plan the distance so the wash covers the plant without creating a harsh bright spot.
SANSI 5W Dimmable Grow Light Bulb: Best for adjustable full-spectrum control
- 5W LED
- Full spectrum
- Remote control
- 4 brightness levels
- 4, 8 and 12-hour timer
SANSI's compact PAR20 bulb gives you full-spectrum white light with remote dimming and timing. It fits a focused plant setup where adjustable brightness matters.
Pros
- Remote control
- Timer function
- 25,000-hour operating life
Cons
- Focused 60-degree beam
- Only 500 lumens
The SANSI 5W Dimmable Grow Light Bulb is the best alternative when you want adjustable full-spectrum light in a compact bulb. It uses a PAR20 shape, E26 base, 60-degree beam and 500-lumen output.
The included remote provides 4 brightness levels from 25% to 100%, along with 4, 8 and 12-hour timing options. That makes it easier to adjust light for a small plant group without moving the bulb.
SANSI gives a PPFD figure of 53.85 micromoles per square meter per second at 1 ft and a stated operating life of 25,000 hours. The bulb is intended for indoor use.
A focused beam can be useful when the plant sits directly below the fixture. It can be less suitable for a wide shelf unless you use more than one bulb or position the fixture carefully.
The remote control suits plants that need changing light levels. You can reduce brightness for seedlings or increase it as the plant matures without unplugging the lamp.
Timing options help keep a daily routine steady. A set schedule reduces the chance of leaving the light on for too long or forgetting to turn it on.
At 500 lumens, this is a small output bulb. Place it close to the plant and check leaf response before assuming it will cover a large shelf.
Briignite 2 Pack LED Grow Light Bulb: Best for broad full-spectrum coverage
- 2 BR30 bulbs
- Full spectrum
- 1,000 lumens
- 180-degree beam
- Non-dimmable
Briignite combines a BR30 shape with a 180-degree beam and 1,000-lumen output. It suits indoor plants that need broad white supplemental light instead of a purple appearance.
Pros
- Broad 180-degree beam
- 1,000-lumen output
- 50,000-hour operating life
Cons
- Non-dimmable
- Only 2 bulbs
The Briignite 2 Pack LED Grow Light Bulb fits shoppers who want broad white full-spectrum coverage instead of purple light. Each BR30 bulb uses 11W, produces 1,000 lumens and has a 180-degree beam.
Briignite describes the bulbs as full spectrum with a 3500K appearance. The bulbs are also described for tomatoes, cucumbers, peppers, leafy greens and herbs across all growth stages.
The E26 base fits standard E26 sockets, which keeps installation simple when you already have suitable lamps. The bulbs are non-dimmable, so plan the fixture position and distance before turning them on.
The wide beam helps light more than one plant from a single fixture. That can suit a shelf where you want even coverage instead of a narrow spot.
The stated operating life is up to 50,000 hours. That long life makes the pair easier to keep in regular use once the position is set.
Pick this pair when natural-looking light and broad coverage are more useful than purple color. The white appearance also makes it easier to check plant color and leaf condition.
Non-dimmable control is the main limit. Set the height and distance first, then judge the result over several days rather than adjusting brightness on the spot.
SANSI LED Grow Light Bulbs 3-Pack: Best for a 3-bulb full-spectrum setup
- 3 PAR20 bulbs
- 10W each
- Full spectrum
- 4000K daylight
- 16.8 PPF
This 3-pack gives you matching 4000K PAR20 bulbs for several fixtures. The full-spectrum output and 25,000-hour operating life suit a coordinated indoor growing area.
Pros
- 3 bulbs
- 4000K daylight
- Ceramic lamp body
Cons
- Indoor use
- No dimming or timer listed
The SANSI LED Grow Light Bulbs 3-Pack is a good choice for a coordinated full-spectrum setup across 3 fixtures. Each PAR20 bulb uses 10W, has a 4000K daylight color and uses an E26 base.
SANSI states a PPF of 16.8 micromoles per second and a PPFD of 97.91 micromoles per square meter per second at 1 ft. The bulbs have a stated operating life of 25,000 hours.
The ceramic lamp body and PAR20 shape set this pack apart from the A19 and BR30 options. Check the fixture dimensions and keep the bulb at a suitable distance from plant leaves.
This 3-pack has no listed dimming or timer feature. It suits growers who want matching bulbs and will manage the schedule with their normal light routine.
Three matching bulbs help keep light even across a shelf. Use the same distance and schedule for each fixture so plants get similar treatment.
The 4000K daylight color suits indoor rooms well. It gives a natural look while still providing full spectrum light for different growth stages.
Indoor use keeps placement simple. Put the bulbs in dry indoor fixtures and check that heat and light distance suit each plant.
ALIDE Led Grow Light Bulbs for Indoor: Best for mixed red-blue plant lighting
- 3 A19 bulbs
- 10W each
- E26 base
- 5000K red-blue mix
- 23 PPF
ALIDE uses familiar A19 bulbs with a 5000K red-blue mix and a wide 230-degree beam. The 3-pack works for several standard lamps in an indoor garden.
Pros
- 3 bulbs
- Wide beam angle
- E26 base
Cons
- Not waterproof
- Indoor use
The ALIDE Led Grow Light Bulbs for Indoor gives you 3 A19 bulbs with a 5000K red-blue mix. Each bulb uses 10W, has an E26 base and a wide 230-degree beam angle.
ALIDE describes blue, green, yellow and red wavelength ranges for different parts of plant growth. It also states a PPF of 23 micromoles per second for the bulbs.
The A19 shape works with many standard lamps, while the wide beam can spread light across a broader area. The package includes 3 E26 A19 LED grow light bulbs.
These bulbs are for indoor use. They can be used outdoors only with a fixture that protects them from water and rain, because the bulb itself is not waterproof.
The wide beam can help cover a group of plants from one lamp. It can also spread light to nearby surfaces, so keep the fixture aimed at the plant area.
Three bulbs suit a shelf or several small lamps. That makes it easier to spread light rather than relying on one bright spot.
Different plants need different light amounts. Match the distance and hours to the plant type and watch growth before changing the setup.
2 Pack BlueX LED A21 Purple Light: Best for larger purple A21 bulbs
- 2 A21 bulbs
- 15W each
- 1,200 lumens
- E26 base
- Non-dimmable
The A21 shape is larger than A19, and each bulb uses 15W with a stated 1,200-lumen output. Choose this pair when your fixture has room for a larger purple bulb.
Pros
- 1,200 lumens per bulb
- E26 base
- Indoor and outdoor use
Cons
- Non-dimmable
- Only 2 bulbs
The 2 Pack BlueX LED A21 Purple Light is made for shoppers who want a larger purple bulb with more output than the A19 BlueX pack. Each bulb uses 15W, has an E26 base and produces a stated 1,200 lumens.
A21 is larger than A19, so check clearance around the bulb and inside the shade. The bulbs are non-dimmable and have a stated operating life of up to 10,000 hours.
Bluex Bulbs describes these bulbs for indoor and outdoor decorative lighting. Their purple appearance can add color around a porch or plant area, but the bulb's color does not by itself guarantee a complete grow-light spectrum.
Choose this pair when the larger A21 format and 1,200-lumen output suit your fixture. Pick the 6-pack A19 option when you need more bulbs for several standard lamps.
At 15W per bulb, this pair is stronger than the 9W A19 option. That extra output can suit a larger lamp or a spot where the bulb sits farther from the plant.
Non-dimmable control keeps use simple. You will need to rely on distance and fixture choice to set the light level.
Indoor and outdoor use adds flexibility for decorative setups. Use a suitable fixture for the location and protect the bulb as the fixture requires.
Gonhom PAR38 Flood Lights Outdoor: Best for outdoor purple flood effects
- 2 PAR38 bulbs
- 20W each
- 1,800 lumens
- Dimmable
- 25,000-hour life
Gonhom's PAR38 pair is built around high-output purple flood lighting for porches, holidays and larger decorative areas. Dimming helps adjust the effect when the full output is too strong.
Pros
- 1,800 lumens
- Dimmable
- Indoor and outdoor use
Cons
- Purple light is mainly decorative
- No included components
The Gonhom PAR38 Flood Lights Outdoor is the best match for high-output purple flood effects around a porch or holiday display. The 2-pack uses 20W bulbs with a stated 1,800-lumen output and E26 bases.
The PAR38 shape needs more room than A19 or A21 bulbs. Each bulb is dimmable, which helps you reduce the effect when full brightness is too strong for the space.
Gonhom gives a stated operating life of up to 25,000 hours and describes the bulbs for indoor and outdoor use. The product is built around purple flood lighting, so it is better for decorative supplemental use than for a measured plant-light setup.
Confirm that your outdoor fixture protects the bulb as required for the installation. Choose it when broad purple output matters more than a balanced spectrum.
The 1,800 lumen output is the highest among the purple options here. That suits a porch, wall wash or holiday display where a strong color effect is the goal.
Dimming helps balance the effect. Lower output can make the purple light easier to use near seating areas or plants.
Indoor and outdoor use makes the pair versatile. Check fixture fit first because the PAR38 format needs depth that some small lamps cannot provide.
Purple bulbs versus red-blue grow bulbs
Purple bulbs are best when you want colored supplemental light, while red-blue or full-spectrum bulbs are easier to match to plant-focused setups. The right choice depends on the plant, fixture and how much control you need.
Purple bulbs from BlueX and Gonhom make the room or outdoor area visibly purple. Their main differences are bulb shape, output, pack size and dimming.
The 6-pack A19 option gives the most bulbs, while the Gonhom PAR38 pair gives the highest stated output. The BlueX A21 pair sits between them in size and output.
Purple light can support supplemental lighting, but color alone does not prove a balanced spectrum. Plants that need steady growth support may do better with a bulb that states its spectrum clearly.
The GE and ALIDE options use red-blue lighting in less decorative formats. GE uses balanced red-blue light in BR30 bulbs, while ALIDE combines red, blue and 5000K LEDs in A19 bulbs.
Full-spectrum choices such as SANSI and Briignite use white-looking light. These are useful when you want to inspect plant color easily or keep the room closer to a normal daylight appearance.
Shape also changes how light spreads. A19 bulbs fit familiar lamps, while PAR38 and BR30 formats suit wider fixtures and flood style coverage.
Control features differ across the range. Some bulbs are non-dimmable, while others offer dimming or a remote with timing for a steadier daily routine.
Read our guide to is purple light good for plants if you are deciding between colored light and a white full-spectrum bulb. That guide helps you weigh appearance against plant needs.
How to choose a purple grow light bulb
Choose the bulb shape and socket first, then compare spectrum, output and control features. A bulb with the right plant-light features cannot help if it does not fit the fixture safely.
Match the E26 base and bulb shape
Most products in this roundup use an E26 base, but their shapes are different. A19 and A21 bulbs fit different amounts of space, while BR30 and PAR38 bulbs are wider flood-light formats.
Measure the fixture opening and the space around the bulb. A larger bulb can touch a shade or fail to fit inside a narrow lamp.
Compare purple color with plant spectrum
Purple light can make red and blue wavelengths visible as a strong colored glow. That may suit a decorative setup, but a stated red-blue or full-spectrum design gives you more useful information about plant-focused lighting.
For a closer explanation of the color, read why are grow lights purple. Use the plant's growth stage and the distance from the bulb when deciding how much light it needs.
Decide whether dimming or timing matters
Dimming helps when plants sit close to the bulb or when the room is too bright at full output. The Bluex PAR38, SANSI 5W and Gonhom options offer dimming, while the BlueX A19 and A21 bulbs are non-dimmable.
A timer can make a daily routine easier. The SANSI 5W bulb includes 4, 8 and 12-hour timing options through its remote.
Consider coverage and bulb count
A wider beam can light more of a shelf, while a focused beam can direct more light toward one plant. ALIDE states a 230-degree beam, Briignite states 180 degrees and SANSI's 5W PAR20 uses a 60-degree beam.
Pack size also changes the setup. The BlueX A19 pack has 6 bulbs, while several alternatives provide 2 or 3 bulbs for a smaller arrangement.
How to set up purple grow light bulbs
Place the bulb where it lights the plant evenly without touching leaves, then keep the daily schedule consistent. Start with the fixture manufacturer's safe-use instructions and adjust the distance if leaves show signs of light stress.
Use a suitable E26 fixture for the bulb. Keep bulbs that are marked for indoor use in a dry indoor location, and use a protected fixture for any outdoor installation.
Measure the shade and fixture before you install the bulb. A bulb that touches the shade or sits too deep in a housing can waste light and make the setup harder to adjust.
A single bulb may light one plant or a small area. A group of bulbs can cover a shelf more evenly, but overlapping beams may increase brightness in the center.
Set the distance first, then watch the plant over the next few days. Leaf curl, pale growth or stretching can signal that the light level or position needs a change.
Keep the daily hours steady once you find a good distance. A regular schedule helps you judge whether the plant is responding to light or to another change.
A single bulb may light one plant or a small area. A group of bulbs can cover a shelf more evenly, but overlapping beams may increase brightness in the center.
Check the plant regularly rather than judging the setup by purple color alone. New growth, leaf position and the plant's normal water needs can help you decide whether the light distance and schedule need adjustment.
Clean the bulb and fixture shade as needed in normal use. Dust on the shade can reduce light output and make the setup look dimmer than it should.
Avoid letting leaves touch a warm bulb. Keep a safe gap so the plant can grow toward the light without direct contact with the fixture.
Verdict
The 6 Pack BlueX LED A19 Purple Light is the best purple grow light bulb for most shoppers who want several E26 bulbs and a strong purple appearance. Choose GE for balanced red-blue plant lighting, SANSI for remote dimming and timing, or Briignite for broad full-spectrum white light.
The 6-pack suits standard A19 fixtures and several plant spots at once. Its 9W bulbs and 850-lumen output work best as targeted supplemental light.
GE suits growers who want plant focused light without a purple room. Its BR30 bulbs use a balanced red-blue spectrum for seeds, greens, herbs and flowering plants.
SANSI suits a small setup where control matters. The remote gives brightness levels and timing options for a focused PAR20 beam.
Briignite suits a shelf that needs wide white coverage. Its 180-degree beam and 1,000-lumen output keep the room looking more natural.
If you want to compare more bulb-based options, start with our Best Grow Light Bulb guide. For replacement options, see Best LED Grow Light Replacement Bulbs.
Our top 3 picks at a glance
-
1
Best for multi-fixture purple lighting
6 Pack BlueX LED A19 Purple Light
9.7/10 our score
See it on Amazon -
2
Best for natural-looking plant lighting
GE Grow Lights for Indoor Plants
9.5/10 our score
See it on Amazon -
3
Best for dimmable purple flood lighting
Bluex Bulbs 2 Pack LED Par38 Flood
9.4/10 our score
See it on Amazon
Frequently asked questions
Are purple grow light bulbs good for plants?
Purple grow light bulbs can provide red and blue wavelengths, but purple color alone does not confirm a balanced plant spectrum. For targeted supplemental lighting, compare the bulb's stated spectrum and output.
Full-spectrum or balanced red-blue bulbs are easier choices for mixed indoor plants.
What is the best purple grow light bulb for a standard lamp?
The 6 Pack BlueX LED A19 Purple Light is the easiest fit for many standard lamps because it uses an E26 base and A19 shape. It is a 9W, non-dimmable bulb with an 850-lumen output, so check your fixture and brightness needs first.
Should I choose A19, A21 or PAR38?
Choose A19 for a familiar household bulb shape, A21 when you have room for a larger bulb, and PAR38 when you want a flood-light format. The fixture must accept the E26 base, and the bulb must fit without touching the shade.
Are purple bulbs better than full-spectrum grow bulbs?
Purple bulbs are useful when you want colored light or targeted supplemental lighting. Full-spectrum bulbs are usually easier for rooms where you want plants to receive broad light without a purple appearance.
Match the spectrum to the plant and the way you use the space.
