http://www.1000bulbs.com/product/56194/PLT-400MA4TK.html?tid=car http://www.1000bulbs.com/product/59301/MHS-236935.html is this all I need to try a cmh grow are they compatable ?
DIY CMH electrical help
- Thread starter mr eddy
- Start date
jman1062000
Active Member
hey I know its a little late but here u go, you need a magnetic hps 400 watt ballast to run cmch, HPS 400w only! You can find a lot of information on here just have too look 
jman1062000
Active Member
ill help you out some more...... buy a hps ballast not a mh because you can turn a hps ballast into a mh/hps ballast by putting a switch inbetween the igniter I believe x3 don't hold me to that make sure you look it up!!!! just trying to help a newbe 
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