I'm putting this in miscellaneous 'cause it's a darkroom related question, but a mod may move it if they think it fits better elsewhere. I have a regular light in my darkroom that just blew the other day. It was a 100W one and I don't have any more and can't get one. Of the brighter replacements out there, which ones turn off the fastest and how long do they take? The boxes only mention if they turn on instantly. I don't really want to stand around for 10 minutes to wait for the light to be completely off. I tried using a 60W, but it isn't really bright enough 'cause it has to cover the whole room.