Ceramic Metal Halide Grow Lights (CMH/CDM)
CMH is more popular in the horticultural industry. The CMH lamps have a very broad light spectrum that is more similar to the sun than any other form of HID lamp. The CMH fixture can be used as a primary veg light; a primary light for SOG (or Sea of Green) applications or a supplemental full spectrum light for large flowering operations.
CMH lighting is economical and reliable. A ceramic metal halide system will increase the growth and yield of your plants and will lower your energy costs by up to 70%! CMH bulbs in a Digital Ballast can be used from vegetative state straight through to flowering. Hydrotek has the best CMH brands like, Philips, Hortilux, Lightspeed, Silverstar and many more.