Ultra Sun MH 1000/U/BT-37 4200K Lamp Universal burn position. 4,200° K color temperature. Lamp has good spectral distribution. Emits the bluish and green regions of the light spectrum. Stimulates plant growth more efficiently than any other light sour

Philips Master Color CDM Lamp 315 Watt Elite MW 4200K (Blue) These Philips lamps feature superior color quality and very crisp white light. Incredibly high 1.95 PPF (photosynthetic photon flux) per watt per second light source. 3,100° K Green Power or

Ushio CMH-315 Watt / 942 / Agro 4200K The Ushio HiLux Ceramic MH lamps are available in 3,000° K and 4,200° K. Ceramic metal halide lamps are excellent for plant growth and HPS supplementation. Spectral distribution is optimized for photosynthetic eff

Gavita CMH 630e 208-240 4200k Lamp The Gavita Pro 630e SE is available with the Philips 315 watt 3000° Kelvin lamps (for flowering) or 4200° Kelvin lamps (for vegetative or supplemental use). The fixture is equipped with the M 132 SE CMH630 reflector (

Gavita CMH 315e 208-240 4200k Lamp The Gavita Pro 315e SE is available with the Philips 315 watt 3000° Kelvin lamps (for flowering) or 4200° Kelvin lamps (for vegetative or supplemental use). It is a compact fixture with a new type of reflector mountin