630W DE CMH - Anyone running these?
- Thread starter Renfro
- Start date
Renfro
Well-Known Member
https://www.amazon.com/Growers-Choice-Horticultural-Lighting-CERAMIC/dp/B073SKDJQP
They sell a ballast and bulb combo, use existing socket / reflector.
https://lumatek-lighting.com/2018/02/13/630w-de-cmh-kit/
They also sell a ballast and bulb combo, can't find it in the US though, perhaps waiting for UL approval??
They sell a ballast and bulb combo, use existing socket / reflector.
https://lumatek-lighting.com/2018/02/13/630w-de-cmh-kit/
They also sell a ballast and bulb combo, can't find it in the US though, perhaps waiting for UL approval??
Aeroknow
Well-Known Member
Yup.
When they first came out I bought 4 of them and gave them a go. I used my
Phantom DE ballasts turned down to 60%. Each light was over a 4x4 area.
Didn’t do a side-by-side comparison with them but I would say they yield what you would expect to yield from a 1000w DE ballast with a regular hps bulb turned down to 60% lol. They worked pretty good for me the run I did with them. Not quite the yields as from a single ended 1000W hps but close, although I never did a side by side because ever since I switched to DE in the bloom rooms I ditched the single ended setups.
After one run of experimenting with them I threw them in my veg room. With them I had finally converted my larger veg room to DE/cmh lighting and never looked back.
Renfro
Well-Known Member
Right on. Reading the Lumen Flux numbers they seem to be roughly equivalent to a 600 watt HPS.
I hear they are working on a 1000 watt DE CMH. That's what I will wait for.
Aeroknow
Well-Known Member
I would take a par reading and compare to DE w/hps for you but I lost everything in The Camp Fire.
anyways, They still haven’t gotten that 1000W DE/cmh bulb out yet? Dang.growingforfun
Well-Known Member
I could be wrong but I think theres a extensive thread on icmag on the 1000 watt de cmh with several posters using them. I think it's like 13 pages long as of 4 months ago. I dont have a link but I'm pretty sure I remember reading it..
Renfro
Well-Known Member
I only see nanolux brand though. I have had so many ballast failures with their 1000w DE HPS that I just don't trust them. I hope that Phantom or Sunsystem starts selling those.
RedDirtResin
Active Member
I run Sun system LEC 630. Same coverage as a 1k hps. Way less heat. 
Renfro
Well-Known Member
Is that a Double Ended single bulb or just two 315 singles in one reflector?
RedDirtResin
Active Member
2 315's in 1 reflector
Renfro
Well-Known Member
Cool, I'm looking at the DE version with one 630 watt bulb. I suppose they also have a 1000 watt version of the DE CMH.
Reading the stats the 630 seems to be about the same lumens as a 600 watt HPS. I don't see how it could cover the same area and yield as much with 370 less watts but I would like it were that the case.
I do better with two 315s than my de 630 it is in an acde style hood so there is glass taking some power away. My smallest yield out of my 4x8 was with two de 630. I thought was replacement for up to 2000 watts hps but it didn’t come close to 3 600 watts hps fixtures.
bottletoke
Well-Known Member
Im taking down a wall and joining 2 flower rooms into 1 room. The old setup was 6 1000w gavita des in each im now doing 6 gavitas and 4 640w de cmh for the whole room. Im using proper cmh square wave ballasts. Too much of a loss running cmh in hps de ballasts.
Greenhomes
Member
I use them in combination with de hps fixtures. They put out a little less heat than a 1000 watt hps. Approximately 2200 btu of heat as compared to 3400 btu (if you dont have ballasts in room). I combine them with hps so I get a lot more variety of light spectrums. They have more of a light spectrum that would be aimed at veg growth imo but they definitely can be used for bloom. I cant give you a side by side comparison of yield because I have always combined the 2 types of lights. I like the more white light output of the de cmh to work in than the orange of the de hps. I think nanolux makes a fixture with hps and cmh combined in one fixture.
Lucky Luke
Well-Known Member
Ive just set up a Hi-PAR 630w DE CMH. in a 4 x 4 x 6. ( https://www.hi-par-horticulture.com/ )
Found its cooler than my 600w HPS.
Found its cooler than my 600w HPS.
Dividedsky
Well-Known Member
Ya I'm going to be purchasing 630s for a 2nd grow room. I was going to add 2 cheap 315 to my 4- 1000w/hps room to see how the are and could use a lil extra light in the middle of room. Are the cheap 315/630 cmh China lights on Amazon safe to use? I was thinking of buying a couple soon and throwing a Philips bulb in them.
I bought some ebm or eonboom lights from China 630 watt square wave de, and both ballast failed within 6 months and shipping was to much for warranty. Growershouse and htg both have decent deals on cmh with Phillips bulbs
Dividedsky
Well-Known Member
Ya I was looking at growers house also, liked the one with the adjustawing and the ballast by itself, you know the setup where the ballast is NOT connected to the hood.