U ulnair Member Mar 13, 2010 #1 I have a 70 watt HPS ballast set up, but I also have a 150 watt HPS bulb. Can I switch the bulbs? Thanks!
I have a 70 watt HPS ballast set up, but I also have a 150 watt HPS bulb. Can I switch the bulbs? Thanks!
herbose Well-Known Member Mar 13, 2010 #2 To the best of my knowledge, no. Bulb and ballast wattage must match,
