harley420
Active Member
Hey guys ! Ok well I have two 1000 watt HPS/MH ballast the newer one has a switch to change it from MH or HPS that's not the problem I have an old school one that has no switch for MH/HPS when I plug my 1000 watt hps bulb into the old school one it fires up but not as bright as my newer ballast and also when I plug in the 1000 watt MH bulb it fires up but when it gets close to full strength it shuts off, what do you think the problem could be ? Its running my hps now fine but I got it to run my MH I am just going to switch it all to HPS but I like running 1/3 mh with my hps during flower plz help thx.