9 Best Grow Lights for Tomatoes and Peppers in 2026
Nine tent grow lights for indoor tomatoes and peppers compared, led by the MARS HYDRO TSW2000, KOSCHEAL KS2000, and AC Infinity IONBOARD S33, with power and coverage.
By Ethan Cole
Updated November 3, 2026
Tomatoes and peppers are fruiting plants, and they need far more light than herbs or lettuce to flower and set fruit indoors. A shelf light or a single bulb is rarely enough; the usual setup is a 3×3 or 2×4 tent with a 200 to 400-watt LED fixture.
This guide compares nine tent lights suited to fruiting vegetables, chosen for enough real power to cover the plants, a full spectrum with red, and dimming for seedlings. For tent sizes see 3×3 and 4×4 grow lights; for starting transplants see grow lights for seed starting.
Safety note: grow tent lights draw from about 65 to 850 watts. Hang them from hangers rated for the fixture’s weight, plug them into a grounded outlet (GFCI-protected in a humid tent), keep drivers and cords off wet floors, and follow the maker’s hanging height. Many of these lights include far-red or infrared (730nm) diodes and a few include UV (395 to 405nm); do not look into them at close range. We describe what each maker lists; we do not promise growth or harvest results.
All Products Compared
| Product | Best For | Power (Listed) | Coverage (Listed) | Spectrum Notes | Control |
|---|---|---|---|---|---|
| MARS HYDRO TSW2000 | Best Overall | 300W | 3×3 flower, 4×4 veg | White + far-red | Driver dimmer, chain to 50 |
| KOSCHEAL KS2000 | Spectrum Switches | 230W actual | 3×4 to 4×4 (title) | 395nm and 730nm, Veg/Bloom | Two switches |
| AC Infinity IONBOARD S33 | Humid Tents | Not listed | 3×3 | Samsung LM301H | 0 to 100%, IP-65 |
| VIPARSPECTRA P2000 | 2×4 Tents | 250W (title) | 4×2 flower, 4×3 veg | 3000K, 5000K, 660nm | Dimmer, daisy chain |
| VIVOSUN AeroLight 240W | Air Movement | 240W | 2×4 | Tunable | App via GrowHub, fan |
| AGLEX 420W | Larger Tents | 420W | 4×5 | 405nm UV, 730nm IR | 0 to 100% |
| FARMLITE 360W 4×4 | Foldable Bars | 360W | 4×4 | Not detailed | Dimmer, 0-10V |
| Spider Farmer G3000 | 3×3 Bars | 300W | 3×3 | 3200 to 5000K, 660nm | Dimmer with display |
| MARS HYDRO SP3000 | 2×4 Strip | 300W | 4×2 | 3000K, 5000K, 660nm | Dimming box, WiFi app |
| Award | Product | WikiHomeLED Score About WikiHomeLED ScoreThe WikiHomeLED Score is our own rating from 0 to 10, calculated the same way for every product from Amazon buyer ratings, adjusted for how many ratings each product has. It is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
| Best Premium |
MARS HYDRO 300W TSW2000 Led Grow Light for Indoor
|
8.7/10 | $199.99 | Buy |
| Best Budget |
KOSCHEAL KS2000 230W LED Grow Light
|
8.5/10 | $99.77 | Buy |
AC Infinity IONBOARD S33
|
8.4/10 | $249.00 | Buy | |
| Best Overall |
250 Watt Plant Lights for Indoor Growing
|
8.9/10 | $131.99 | Buy |
VIVOSUN AeroLight 240W LED Grow Light
|
8.4/10 | $189.99 | Buy | |
AGLEX 420W Full Spectrum LED Grow Light with UV
|
8.2/10 | $259.99 | Buy | |
360W LED Grow Lights 4x4 Growing Bar for Indoor
|
8.2/10 | $179.99 | Buy | |
Spider Farmer G3000 LED Grow Light for Indoor
|
8.2/10 | $179.99 | Buy | |
| Best Value |
MARS HYDRO SP3000 Grow Light Dimmable Full
|
8.5/10 | $189.99 | Buy |
MARS HYDRO 300W TSW2000 Led Grow Light for Indoor
KOSCHEAL KS2000 230W LED Grow Light
AC Infinity IONBOARD S33
250 Watt Plant Lights for Indoor Growing
VIVOSUN AeroLight 240W LED Grow Light
AGLEX 420W Full Spectrum LED Grow Light with UV
360W LED Grow Lights 4x4 Growing Bar for Indoor
Spider Farmer G3000 LED Grow Light for Indoor
MARS HYDRO SP3000 Grow Light Dimmable Full
Top 3 Grow Lights for Tomatoes and Peppers Reviewed
#1 MARS HYDRO TSW2000: Best Overall
Why We Picked It
The TSW2000 is a 300-watt TS series board shaped for square tents, 23.3 x 18.7 inches, rated for 3×3 ft flowering and 4×4 ft vegetative growth. It shares the TS rating base of 4.6 stars on about 20,400 ratings.
A 0 to 100 percent dimmer on the external driver lets you start seedlings at low power and raise it as plants flower, and up to 50 lights daisy chain.
Key Specifications
- Power: 300W
- Coverage: 3×3 ft flower, 4×4 ft veg
- Size and weight: 23.3 x 18.7 in, about 7.7 lb
- Dimming: 0 to 100% on driver
- Daisy chain: up to 50
- Reflector: 120-degree white
| Pros | Cons |
|---|---|
|
|
Things to Consider
A 3×3 holds a few compact tomato or pepper plants; prune and support vining types.
Best For
A 3×3 tent of peppers or determinate tomatoes.
Skip It If
Skip it if you want app scheduling.
Check current pricing and availability for the MARS HYDRO TSW2000.
#2 KOSCHEAL KS2000: Spectrum Switches
Why We Picked It
KOSCHEAL’s KS2000 draws an actual 230 watts at a listed 2.8 µmol/J. Its 596 LEDs include 730nm far-red and 395nm diodes, and separate Veg and Bloom switches let you run different parts of the spectrum as plants move from leaves to flowers.
It scores 4.5 stars on about 2,700 ratings, pooled with the KS1200, and daisy chains up to 3 units.
Key Specifications
- Power: 230W actual
- Efficacy: 2.8 µmol/J (listed)
- LEDs: 596 incl. 395nm and 730nm
- Switches: Veg and Bloom
- Daisy chain: up to 3
- Size and weight: 15.7 x 8.27 in, 3.31 lb
| Pros | Cons |
|---|---|
|
|
Things to Consider
A 230-watt light suits a 3×3 or 2×4 of fruiting plants better than the 4×4 the title suggests.
Best For
A budget 3×3 of peppers or tomatoes.
Skip It If
Skip it if you want a single dimmer knob.
Check current pricing and availability for the KOSCHEAL KS2000.
#3 AC Infinity IONBOARD S33: Humid Tents
Why We Picked It
Tomatoes and peppers transpire a lot of water, so tents get humid. The IONBOARD S33 is an IP-65 rated Samsung LM301H board for 3×3 tents with 0 to 100 percent dimming and AC Infinity controller support.
The IONBOARD line scores 4.5 stars on about 1,050 ratings, pooled. Wattage is not listed on this listing.
Key Specifications
- Diodes: Samsung LM301H
- Moisture: IP-65
- Dimming: 0 to 100%
- Tent: 3×3
- Smart control: AC Infinity controllers
- Size: 21 x 21 in
| Pros | Cons |
|---|---|
|
|
Things to Consider
Pair it with an exhaust fan and humidity control; the light’s seal does not dry the tent.
Best For
Humid 3×3 tents.
Skip It If
Skip it if cost matters most.
Check current pricing and availability for the AC Infinity IONBOARD S33.
How to Choose a Grow Light for Tomatoes and Peppers
Enough Power for Fruiting
Fruiting crops need much more light than greens. Use a light rated for your tent’s flowering footprint, not only its veg footprint.
Red in the Spectrum
Every light here adds 660nm red to white LEDs. Far-red (730nm) is common too; follow each maker’s guidance.
Plan for Height
Tomatoes grow tall. Choose compact or determinate varieties for tents, and leave room between light and canopy as they grow.
Humidity and Air
Large leafy plants raise humidity. An exhaust fan, plus a sealed light or one with a fan, helps.
How We Evaluate Grow Lights for Tomatoes and Peppers
We did not grow plants under these lights. We compared manufacturer specifications and Amazon listing details, and ranked products by the WikiHomeLED Score, which adjusts the Amazon star rating for the number of ratings (ratings checked November 2, 2026). To qualify, a product had to be a tent LED light with enough listed power and coverage for fruiting vegetables, with at least 20 ratings and a rating of 4.1 stars or higher. PPF, PPFD, efficacy (µmol/J), and coverage figures are as published by each seller and are not our measurements. Sellers often list a larger vegetative coverage and a smaller flowering coverage; we quote both where given. Several listings make yield claims; we do not repeat them. Mars Hydro TS, Spider Farmer SF, VIVOSUN LumaLight, VIPARSPECTRA P, and AC Infinity IONBOARD ratings are pooled across every size on one Amazon listing family, so the same rating can appear for different sizes. The full method is on our How We Review page. We make no claims about fruit set or harvest size. Brands are capped at two entries.
Frequently Asked Questions
Can you grow tomatoes indoors with a grow light?
Yes, compact and determinate varieties in a tent with a strong LED light. Pollination may need a gentle shake of the flowers indoors.
How many watts for tomatoes in a tent?
About 200 to 300 watts of real LED power for a 3×3 or 2×4, more for a 4×4.
Do peppers need red light?
Full spectrum white light with added red, as on every light here, covers what peppers use.
Can I use a shelf grow light for tomatoes?
Shelf bars suit seedlings. Mature fruiting plants need a tent-class light like these.
Final Verdict
The MARS HYDRO TSW2000 is our pick for a 3×3 tent of tomatoes or peppers: 300 watts, a square footprint, and the largest rating base. The KOSCHEAL KS2000 is the budget alternative with published efficacy and spectrum switches, and AC Infinity’s IONBOARD S33 is the sealed choice for humid tents.
About the author
Ethan Cole leads research and editing at WikiHomeLED, comparing LED lighting for the home through manufacturer specs, manuals, safety listings and owner feedback. Every product is scored against the criteria on our How We Review page, and picks are updated when models change.