Sunritek JF 420W 4'×4 Full Spectrum Commercial Grow Light for Indoor, Greenhouse & Container Cultivation
No.JF- 420W
JF 420W High Efficiency Full Spectrum LED Grow Light | Medium Commercial Indoor Cultivation Ideal Crops: Resin-rich flowering varieties, tomatoes, bell peppers, strawberries, basil, mint, cut flowers, seedlings & clones. Ideal Spaces: greenhouses commercial cultivation,indoor cultivation,containers, garage grows, 4’×4’ grow tentsh
🔹SMF Spectrum Boosts Dense Bud & Resin Production:Eliminates seedling stretch, boosts branching, dense blooms & fruit yields. Fits resin-rich flowering varieties, tomatoes, peppers, strawberries, herbs and cut flowers for full-cycle growth. Optimized for standard 4’×4’ grow spaces.
🔹High 2.8 μmol/J Efficiency:Outperforms old 600W HPS with lower power use. DLC-certified for US & Canada utility rebates to cut costs and speed ROI.
🔹Daisy Chain Up To 8 Lights (277V):Single-outlet multi-light setup reduces wiring mess and installation labor. Works for medium greenhouses, containers, garage grows and 4'x4' tents.
🔹 Full 0–10V Dimming:Tune low for seedlings, max power for bloom/fruit. Compatible with all mainstream commercial grow controllers.
🔹 Full Aluminum Fin Heat Sink with Passive Air Convection：Slotted side vents create natural airflow to pull heat off LEDs without fans. Separated thermal layers isolate light and driver heat to slow diode degradation.
