Collection: HPS/MH & CMH/LEC/CDM HID Grow Lights

HID grow lights are known for maximum yield per square foot. HID includes High pressure sodium (HPS), Metal Halide (MH), and Ceramic Metal Halide (CMH).  CMH is also known as LEC (Light Emitting Ceramic) & CDM (Ceramic Discharge Metal Halide).  HPS is still the king of yield per square foot, however CMH is now the leader in yield per watt.  CMH also has the yields the best quality and has the best overall light spectrum available. 315w CMH bulbs are the closest to natural sunlight available of any grow light on the market. CMH bulbs are available in 3100k & 4200k spectrums. 3100k is for flowering, but because of the balance full spectrum nature of the bulb it can be used very effectively for the vegetative stage as well.  4200k bulbs are designed specifically for veg only and should not normally be used in flowering although some people may use them as supplemental lighting for HPS or in the last 2 weeks of the flowering cycle. 315w CMH bulbs put off slightly less than 1/3 the heat of HPS, although although after taking into consideration the smaller light footprint, they end up producing about 40% less heat than HPS to cover the same area. You can also use conversion socket adapters to convert your old HPS hoods or reflectors over to 315w CMH, however you will have to purchase new ballasts that are specifically made for the 315w CMH lamps. This can be a cost effective option for people with existing single ended HPS setups looking to switch over to the new technology or convert half their HPS to CMH to balance out the light spectrum in their grow room.
10 products
  • 1 Year Used Equipment Extended Warranty (1000w DE Ballast or DE All-in-One - Double Ended HPS)
    Regular price
    $49.99
    Sale price
    $49.99
  • Used Lumatek 1000w Single Ended Dimmable HPS/MH Ballast
    Regular price
    $299.95
    Sale price
    $60.00
  • 315w Horizontal CMH Grow Light
    Regular price
    $239.95
    Sale price
    $209.95
  • 315w Vertical CMH/LEC Grow Light
    Regular price
    $259.95
    Sale price
    $229.95
  • 1000w Double Ended DE HPS Grow Light
    Regular price
    $319.95
    Sale price
    $269.95
  • 630w Horizontal CMH/LEC Grow Light
    Regular price
    $379.95
    Sale price
    $299.95
  • 5x5ft Grow Pro 315w CMH & LED Grow Tent Kit
    Regular price
    $350.99
    Sale price
    $341.95
  • 8x8ft Grow Pro 315w CMH & LED Grow Tent Kit
    Regular price
    $1,149.99
    Sale price
    $674.95