Philips Ceramic Metal Halide HPS-Retro White (CMH) (HPS> <CMH)
250 & 400 Watt Uses HPS Ballast, 20-150 watt on other pages
http://advancedtechlighting.com/cdmed18.htm
international / world wide shipping
How was CMH Invented.
its the Arc tube of HPS and the Gases of Metal halide Basically.. and it created something totally new..
theres a few reasons it hasn't come to our Market faster but thats great all the bugs are out..
CMH INFO
Philips Ceramic Metal Halide MasterColor is available in
20-400 watts
20-150 watt PCMH's run on Pulsed start Metal Halide Ballasts Only
250-400 are avail in PS MH or HPS retro..
(we chose HPS retro for many reasons for horti)
the 250 and 400 "HPS Retro White Ceramic Metal Halide" are specifically designed for use in HPS Magnetic Core Ballasts..
cmh bulbs will run on a electronic ballast only if that electronic ballasts Specifically says for use with Ceramic Bulb on the actual ballasts..
actually cmh like the low Freq of Mag core ballasts over High Freq Electronic ballasts.
there preferred range is 144-240Hz mag core ballasts is 60hz
Ceramic Metal Halide ( CMH ) competes and Whomps the EYE Hortilux Blue (MT400D/HOR/HTL - BLUE)
comparing the 400 horizontals.. as the vertical 400 and both vertical and horizontal 250 cmh has 20K hours 5k longer than 400 WOW!
.............................. ...EYE-BLUE..........CMH
Ballast....................... .MH-Probe..........HPS (easy conversion for hps users)
Price .........................$90-100............50-70
Life.......................... ..12,000Hrs.........15,000Hrs
Initial Lumens...............29,000... ..........34,800
Mean Lumens ..............22,000.......... ...29,600
Lumen maintenance.......64%......... .......85%
Now when you take the last 4 lines and really look at that your actually getting Twice the lamp for half the cost..
not only do you get more initial and Mean lumen's a longer life and more usable life (IE 85%)
the CMH has higher Red to Blue ratio and thats what we WANT to promote better Flowering
CMH doesn't Throw Heat like MH or HPS especially MH
it just so happens the arc tube (from the HPS side of the lamp) Blocks and absorbs allot of that energy and instead of radiating it it holds it and releases almost all up.. * Ya cmh does still throw some heat but Nothing compared to Equal Wattage in MH or HPS..
The Philips Retro white is also open Fixture Rated the EYE Blue IS NOT>>
you need to follow those ratings on your lamps if it states Enclosed fixture you better use a fixture rated Enclosed.
now you say but neither have High lumen's like my HPS Extreme.
ya thats because if you notice the SPD on the HPS you will see they increse the Lumen rating by creating more Yellow Light But thats not what we want..
in short hps dumps about IMPHO 50% of its Total outputted energy where the plant cant absorb it. where as cmh when you compare its Whole output about 25% about wasted like HPS (that 50% and 25% is not fully wasted just 95% of it.. in that range)
all below information is direct from advancedtechlighting.com Web site
