do the say M80 on them anywhere? if so, they are HQI. the hammelton M80 is the gold standard for HQi ballasts. that said, the electronics weigh about 1/3 as much, run cooler and use 25% less electricity. I have 2 select-a-watt Lumatech I'll bring if anyone is interested, the are 250/HQI/400/ 400-super brightI have a Hamilton fixture with T5s the bulbs are single ended screw in I would need the same for the fixture and I’m not sure what ballast they are just 2 big black metal boxes
If people are interested, I’ll bring these:
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