Under Canopy LED Grow Light Kit - 2 or 4 AG-140 140W Bars, 120-277V
Everything you need to add under-canopy lighting, in one box. Each kit includes AG-140 LED bars, a power cord in your chosen voltage, a jumper cord and a pair of stands for every bar. Choose your spectrum, add the Grower's Choice Master Controller for touch-screen dimming and scheduling, or choose the kit without a controller if you already have one.
Compare every option in under canopy lights.
Build your kit
Spectrum: 3K Full Phase (White) or R80 Red Enhanced.
Power Cord Voltage: match the circuit you will plug into: 120V, 240V or 277V.
Bundle Size: 2 bars or 4 bars.
Controller: with the Master Controller, or without.
Choose your spectrum
3K Full Phase (White), AG-140LW: 420 µmol/s per bar at 3.0 µmol/J. A balanced white spectrum for every stage, veg through flower.
R80 Red Enhanced, AG-140LR: 455 µmol/s per bar at 3.25 µmol/J. The usual choice for flowering rooms and the most output per watt.
Adding AG-140 bars as under-canopy supplemental lighting can increase yield by up to 30%. A 2025 peer-reviewed study measured up to +24.58% and +29.95% yield gains from under canopy lighting (read the study).
Three ways to use it
Under canopy: supplemental light for lower bud sites that overhead lights can't reach.
Modular top light: build a 4x4 ft unit with as few as 4 bars or as many as 8.
Supplemental greenhouse light: mount bars on struts or poles so low-DLI days don't cut your production.
What's in the box
2-Bar Kit: 2 x AG-140 bars (selected spectrum), 1 x 8 ft power cord (selected voltage), 1 x 3 ft jumper cord, 2 pairs of adjustable under-canopy stands
4-Bar Kit: 4 x AG-140 bars (selected spectrum), 1 x 8 ft power cord (selected voltage), 1 x 3 ft jumper cord, 4 pairs of adjustable under-canopy stands
With Master Controller: adds 1 x Grower's Choice Master Controller (touch screen)
Need extra jumper cords for your layout? Add AG-140 Jumper Cords separately.
Built for commercial cultivation
Built-in signal booster: every AG-140 has a built-in signal booster that keeps the dimming signal strong across large installations. The Master Controller drives up to 100 bars directly (50 per side), and the booster lets one group run up to 1,000 bars, for precise dimming with no signal "ghosting".
Fully modular: under canopy or top light, indoor or greenhouse.
Enhanced sealing and rugged build: IP65, reliable even in harsh, wet environments.
Premium-grade wiring and connectors.
Per-bar specifications
Power: 140W
Coverage (per bar): flower 4 x 2 ft
Input voltage: 120-277 VAC, 50/60 Hz
PPF: 420 µmol/s (Full Phase) / 455 µmol/s (R80 Red)
Efficacy: 3.0 µmol/J (Full Phase) / 3.25 µmol/J (R80 Red)
Dimming: 0-10V
Ingress rating: IP65
Certifications: ETL listed to UL 8800, DLC listed
Lifetime: L90 > 54,000 hrs
Dimensions: 45.8 x 3.1 x 2.5 in
Weight: 4.85 lb (2.2 kg)
Warranty: 5 years (AG-140 bars), 3 years (Master Controller)
Daisy-chain limits (bars per powered run)
120V: up to 10 bars
208V: up to 19 bars
240V: up to 22 bars
277V: up to 24 bars
DLC listed; may qualify for utility rebates (varies by utility)
DLC listing can qualify these bars for utility energy rebates. Check with your local utility for program details.
FAQ
How many AG-140 bars can one controller run?Up to 100 bars directly from one Master Controller (50 per side). Because every AG-140 has a built-in signal booster, one group can run up to 1,000 bars with a reliable dimming signal, which makes it a fit for large commercial rooms and greenhouses.
Full Phase or R80 Red?R80 Red has the higher output and is the usual pick for flowering rooms. Full Phase is a balanced white light suited to every growth stage.
Do I need the Master Controller?No. The bars use standard 0-10V dimming and also work with Trolmaster Hydro X using a Trolmaster LMA14 cable. Choose the kit with the Master Controller if you want touch-screen dimming and control of up to 100 AG-140 bars directly (50 per side), or up to 1,000 per group with the bars' built-in signal booster, without buying a separate controller.
Which power cord voltage should I choose?The voltage of the circuit you will plug into: 120V, 240V or 277V.
Can I add more bars later?Yes. Add single AG-140 bars, plus jumper cords and stands as needed, up to the daisy-chain limits above.
What's the warranty?5 years on the AG-140 bars, 3 years on the Master Controller.
What about shipping and returns?Orders ship from California; shipping is free within the contiguous U.S. Unused kits in their original packaging can be returned within 14 days with an approved RMA; a 25% restocking fee applies and the customer pays all return shipping. See our Return Policy for details.
Choose With Master Controller under Controller and the kit costs $100 more than the same kit without it. The Master Controller is $250 when bought on its own.
One Master Controller runs up to 100 AG-140 bars directly (50 per side) with touch-screen dimming and scheduling.
