Metal Halide Replacement Bulb - 400 Watt H-4733 - Uline
400 Watt 10000K (CWA) Metal Halide Bulb - German Ushio, Mogul Base | Premium Aquatics
Sylvania 400 Watt Clear ED28 Cool White Metal Halide Bulb | M400/U/ED28 | Bulbs.com
iPower 400 Watt Vegetative Metal Halide MH Conversion Grow Light Bulb Lamp High PAR Enhanced Blue and Violet Spectrums CCT 6000K, 400W, glass - Walmart.com
400w HPIT Plus Tubular Metal Halide Discharge Lamp 645 4500k Cool White [Giant Edison Screw - E40 - GES Cap] (Philips 400HPITPLUS VZ) - - Amazon.com