Amazon.com : iPower GLBULBM600 600W Grow Light Bulb Metal Halide MH Lamp for Plants High PAR Enhanced Blue and Violet Spectrums CCT 6000K, 1 Count (Pack of 1) : Plant Growing Light
General Electric GKV-230 Lamp - 600 Watts/230 Volts 39739 B&H
Digital 600 Watt HPS Lamp | Digital HPS Bulb, Digital Plus Bulb | HTG Supply
Xtrasun High Pressure Sodium (HPS) Lamp 600W 2000K
China 600 Watt Economical LED Grow Light LED Plant Light Lamp Medical Plants Module for 5X5/4X4/4X16/8X8 FT Grow Tent - China LED Grow Light, LED Grow Light Full Spectrum
Xtrasun Metal Halide (MH) Pulse Start Lamp, 600W, 7200K | Discounted Hydroponic Commercial Indoor & Outdoor Grow Supplies at GrowGeneration