Quote:
Originally Posted by elias
just a thought mirrored reflector,galvanised steel,crunched tin foil dome shaped,...
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I hope you get a manufactured solution like the one linked above - these DIY options mentioned are troubling, and you definitely want something safe.
mirrored reflector = hot spots
galvanised steel = poor reflector (so much better available)
crunched tin foil dome shaped = potential disaster
Is that the same 400w halide you've had for years? Maybe just go with the tubes (mix in a 10K) and see how it goes.
I know the DIY route looks cheaper, but there's real safety concerns with some of the electrical shortcuts we make. (Been there, done that.) Spend a few bucks for better results and some peace of mind.