reefrunner69
Aquarium Advice Addict
I finally received my ballast and bulb from pro_builder today, I switched the ballasts and capaciter in my CSL prism pendant wired it all up, switched bulbs, plug it in and it strarts (appears to be a pulse start ballast). The bulb fires, acheives it's full brightness (I assume) and then it the bulb starts to make a high pitched whine increasing in volume until the bulb flashes out. I can unplug the ballast for 5 minutes plug it back in and the process repeats itself, or I can leave it plugged in and it strats all over again. Is it the bulb?? The noise is definately coming from the bulb. I've got another 250W bulb that's been sitting here waiting, as soon as it cools I'm gonna put it in and see what happens. The bulb and ballast were sold to me as an upgrade retro, so I would think they should work together.