Amazon.com: Vegelumax CMH 315W 3K-Red Grow Light Bulb Lamp Full Spectrum 3000K HID Ceramic Metal Halide High Efficiency Low Heat Superior Master Color CDM for Flowering, Enhanced 660nm Red Light,PGZX18 Socket :
Hydro Crunch 315-Watt CMH Enclosed Style Complete Grow Light System with Lamp D940012600-KIT - The Home Depot
Philips GreenPower CMH Lamp – 315w, 3100K° - Global Garden
gGRO 315W Ceramic Metal Halide, CMH, Lamp with Bi-Pin Base – gGRO Horticulture