Square wave ballast.i think it's different than other digital ballast.
Cmh bulbs are the best...only serious downfall is DO NOT BE IN THE ROOM WHEN THEY'RE ON! DON'T BE A DUMBASS!!!
They emit uva uvb light more than hids or led...closest thing to natural sun light!
50 to 60% less heat and brighter light, much brighter!
Lower energy costs...means they pay for themselves...lol....STAY OUT OF THE ROOM WHEN LIGHTS ARE ON...
Just curious what brand of LED light did you use to compare to CMH and come up with the conclusion that CMH is the best?Cmh bulbs are the best...only serious downfall is DO NOT BE IN THE ROOM WHEN THEY'RE ON! DON'T BE A DUMBASS!!!
They emit uva uvb light more than hids or led...closest thing to natural sun light!
50 to 60% less heat and brighter light, much brighter!
Lower energy costs...means they pay for themselves...lol....STAY OUT OF THE ROOM WHEN LIGHTS ARE ON...
Long sleeve shirts and gloves as well,if your in there tending the ladies it won’t take more then 5 minutes to get burned.With CMH get good uv glasses and enjoy the tan. :)
The 3100k Philips cmh bulbs put out less uv than regular mh and HPS. The 4200k bulbs put out more uv than regular HPS but not nearly as much as most regular mh. All of the above bulbs put out FAR less than the sun..... So if you’re not concerned about covering up walking outside on a sunny day why would you be concerned about being in your grow room? Y’all are doing exactly what these manufacturers want perpetuating incorrect info playing to their marketing gimmicks. They don’t put out more uv, they just don’t. They absolutely could but uv being dangerous is INTENTIONALLY filtered out by the glass they use in the jacket allowing only a small amount through. Growers choice has a new bulb out that claims to put out more uv but I haven’t seen any independent analysis done on their bulbs
https://www.cycloptics.com/sites/default/files/GB 315W CMH Spectrum.pdf
And btw this study was done by the Utah state university and cycloptics sells cmh so reporting low amounts of uv would hurt them ,if anything. Stoner myths........
Green light when lights are off.Just curious what brand of LED light did you use to compare to CMH and come up with the conclusion that CMH is the best?
How do you get any work done in the garden if you cant be in there when the cmh lights are on?
Dr bruce bugbee did that study at university of utah,he is probably the most pre eminent indoor crop lighting scientist in the US.
Magnetics are noisy.. But run FOREVER its like the old carbed truck you can buy part at auto zone for it... Vs the new crap with 11 computers hahahaMagnetic ones are definitely noisy. However, most of the digital ones are as well and they often put regulatory agency approvals on them even if they didn't f'ing pass the tests. One of the few I have tested that are acceptably clean are Galaxy. I used a spectrum analyzer and looked at a bunch of different ballasts and that Galaxy was it.
Dee
The 3100k Philips cmh bulbs put out less uv than regular mh and HPS. The 4200k bulbs put out more uv than regular HPS but not nearly as much as most regular mh. All of the above bulbs put out FAR less than the sun..... So if you’re not concerned about covering up walking outside on a sunny day why would you be concerned about being in your grow room? Y’all are doing exactly what these manufacturers want perpetuating incorrect info playing to their marketing gimmicks. They don’t put out more uv, they just don’t. They absolutely could but uv being dangerous is INTENTIONALLY filtered out by the glass they use in the jacket allowing only a small amount through. Growers choice has a new bulb out that claims to put out more uv but I haven’t seen any independent analysis done on their bulbs
https://www.cycloptics.com/sites/default/files/GB 315W CMH Spectrum.pdf
And btw this study was done by the Utah state university and cycloptics sells cmh so reporting low amounts of uv would hurt them ,if anything. Stoner myths........
I wouldn’t pick my lights on weather the popo are going to show up, just my .02 ..Cmh run low frequency ballasts right?
Gravita runs high freq?
Which of these are going to have the cable company or cops knocking at my door?
I know a radio set to am and put next to the eballast will tell you. If it distorts the radio then they will know you are running a leaky high freq ballast. Lol...im not going into the shop with a handheld radio set to am and walk around and check..no good!
I wouldn’t pick my lights on weather the popo are going to show up, just my .02 ..
where do I get a handheld am radio? lol
I’m in Colorado and it’s not legal, it’s regulated. So please stop fooling yourselves guys. This is what all the “we want the tax dollar”people wanted.I have been face palmed here, twice...lmfao!
Face palm!
A battery powered one...doh! Coulda had a V8
I am sure a lot of people on here are and shud be worried about the "popos"
Even if you are "legal" sheriffs can still assist the feds...don't believe the legalized bullshit hype!
It is legal for reason, im sure the future will tell
I’m in Colorado and it’s not legal, it’s regulated. So please stop fooling yourselves guys. This is what all the “we want the tax dollar”people wanted.
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