John Green

Thanks a lot Tim, really useful info. Think I'll look into getting a volt meter. Will be interested to know if one of the circuits in my house is fluctuating, could be a coincidence that various things have blown or broken when using certain sockets, will check it out. Good thing is it's forced me to buy spare bulbs for my 650W lights which can only be a good thing, better to have lights blow at home during testing than on location.

Thanks to both of you for replies. Tim: Do you always test an electricity supply or circuit you've not used before? Also is it worth making general use of a surge protector? Adrian: Thanks, didn't touch the bulbs in this instance.

Hi, new to this forum so sorry if this is a common problem/issue (had a look through older threads and didn't see anything). Recently bought some used Pulsar 650W Quartz lights and was testing them today at home. It's the second time I'd used them at home and previously they were fine. However today the bulbs blew on two lights after only being on for about 1-3 minutes (when one blew I plugged in the other and that blew too). I tried a third light in a different socket and that was fine (left it on for 30 minutes or so). Had problems with this socket before (PC wouldn't work properly, even after reformatting and reinstalling twice, switched sockets and it was fine, never resolved what the problem was). Could this be a 'dirty power' or surge problem? If so is this something to be worried about and what can be done to avoid it? (I know generators can be problematic for some devices but I'm talking about standard power outlets/domestic supplies). Any advice appreciated, thanks in advance.