Philips MASTER color CDM 942 DaylightUse the Philips 315W CDM lamp to improve everything in your garden! It produces a much wider CRI compared to traditional HPS lamps; CDM s are 90% CRO while HPS lamps are around 30 40%. This increase in light spectrum helps to decrease internodal gaps, decrease the rate of stretch, increase essential oil production, increase the number of flower sites and increase growth rates. With one of the highest mol outputs, coupled with a high sustaining lumen