Philips Lighting 274498 Metal Halide Lamp, 400 W, E39 Mogul Single Contact Metal Halide Lamp, ED37, 25350 Lumens | State Electric
150W LED Flood Light With Yoke Mount - 21,000 Lumens - 400W MH Equivalent - 5000K | Super Bright LEDs
Sylvania 400 Watt Clear ED28 Cool White Metal Halide Bulb | M400/U/ED28 | Bulbs.com
Amazon.com: VIVOSUN 400 Watt Vegetative Metal Halide MH Grow Light Bulb Lamp - Enhanced Blue and Violet Spectrums CCT 4200K, 36,000 Lumens : Patio, Lawn & Garden
Amazon.com: iPower GLBULBM400A 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet, Spectrums CCT 6000K : Everything Else