Amazon.com: iPower GLBULBM400 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet Spectrums CCT 6000K : Patio, Lawn & Garden
Metal Halide Bulb 400W E40 Liko - Rayon d'Or
Philips 400HPIPLUSBU 400w E40 HPI Plus 4500 Metal Halide Lamp – The Lamp Company
Ushio Conversion (Sodium to Halide) Lamp, 400W - GreenLightsDirect
UV Lamp 400W E-40 - omnilux
Philips HPI-T Plus 400w/645 - Philips 400w HPI-T Plus Lamp