A word of advice, if you run a dimmable ballast (I run the Galaxy 902518 400/600/1000), use the bulb which corresponds with the setting, i.e. set the ballast @ 400 watts, use a 400 watt bulb, set the ballast @ 600 watts, use the 600 watt bulb, set it @ 1000 watts & use the 1000 watt bulb. The ballast manufacturers will tell you that you can dim a 1000 watt bulb to a lesser wattage, but the bulb people say no, I had done alot of reading on this topic and it seems many opinions vary, I now know the correct answer. My ballast set to 600 decided it would NOT fire the 1000 watt bulb today. I just had panic attack when my phone rang and I was told my 4x4 wasn't lit. I raced home and checked the 1000 watt bulb in another 1000 watt ballast and it lit, simple, bad ballast right ? "no":no: I took the ballast to my local hydro store for warranty and they set me straight, we tested all the gear and it all worked in the store
I was pretty sure that the ballast had a bad something or another but ended up just buying a 600 watt hps bulb, took it home and we're makin bacon again. WHEW ! Kind of a disappointment and a pain to get in and switch out bulbs just for the extra wattage on weekends when I'm home to control the heat. now keep in mind this set-up HAD been working for quite some time till it decided to not fire, glad I got the call and was able to handle the situation quickly, it would suck if it had happened while we were out of town or something.
-F.J.
I was pretty sure that the ballast had a bad something or another but ended up just buying a 600 watt hps bulb, took it home and we're makin bacon again. WHEW ! Kind of a disappointment and a pain to get in and switch out bulbs just for the extra wattage on weekends when I'm home to control the heat. now keep in mind this set-up HAD been working for quite some time till it decided to not fire, glad I got the call and was able to handle the situation quickly, it would suck if it had happened while we were out of town or something.
-F.J.


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