Yes lighting!! I have a good digital ballast with the option of 250-400_600+660w settings. Lucky me. I also have a DIY ballast with a transformer coil and an ignitor component. The DIY ballast has a significant strobe as seen on a camera , where as the digital ballast is good constant light. Can anyone please tell me if a traditional magnetic ballast is going to have a bit of a strobe or Will it be a constant light like the digital ballast is. It's one of those questions I am looking for the answer to before spending money on a better quality ballast to replace the DIY one with. Hopefully thanks for the answer in advance