Last month I set up the growlight in my greenhouse to get some extra light in there in the evenings. It’s a 300w CFL lamp with an integrated ballast. As soon as I turned the light on it died with a loud “bang!”
I have only just gotten around to having a look at the broken bulb. Having opened it up, it’s obvious that two resistors are fried. I might have a go at replacing the resistors if it’s cheaper than getting a new bulb, but knowing why they went and whether it’s worth fixing would be great if anyone has the knowledge.
My first thought was that this type of light might not be suitable for such a cold and humid environment. It was probably about 15°C and 80% humidity in the greenhouse at the time. The bulb and fitting had both been stored for over a year in a cold dry garage.
Any thoughts or tips welcome. Should I buy a new bulb? Should I be looking at an alternative? Should I just give up on getting over 6 hours of light a day in the winter?