1   General / General Discussion / Re: DIY metal halide reflector  on: Today at 03:42:38 AM 
Started by sol - Last post by AngryHorse
Sounds fun!, it’ll be fine, I’ve run a 50 watt merc in a dog bowl before now!  :lol:
 2   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 09:17:06 PM 
Started by sol - Last post by Mandolin Girl
I should hope so, otherwise the light won't get out...  :mrg:
 3   General / Off-Topic / Re: What did you do today NOT lighting wise  on: March 18, 2024, 01:38:06 PM 
Started by Bulbman256 - Last post by LightsAreBright27
Today, I found a giant crt television on the roadside. It was very old (one of the first colour tvs here!) but unfortunately, the internals were replaced by cheap chinese parts, which were broken. The only original parts were the case (is made of double layer plywood with internal metal supports), tube(colour), speaker(torn cone) and some broken AM station dials and buttons. I may save the tube.
 4   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 11:39:02 AM 
Started by sol - Last post by sol
Yes. And the bottom will be open, too so there will be a slight convection updraught.
 5   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 11:28:20 AM 
Started by sol - Last post by Mandolin Girl
You'll be fine, if anything the metal bucket should help to dissipate any heat.  :wndr:
 6   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 11:25:41 AM 
Started by sol - Last post by sol
Yes, ceramic lamp holder and adequate grounding of all parts. Also, I will use high heat spray paint for the exterior.
 7   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 09:42:30 AM 
Started by sol - Last post by Mandolin Girl
I don't think you'll have a problem, it's not going to be fully enclosed, the only thing you'll need to do is make sure that the bucket is grounded, if you're using a metal lamp holder in case of electric shock.  :wndr: :poof:
 8   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 09:21:53 AM 
Started by sol - Last post by sol
Yes, I thought about that. I’ll have to give it a try, but I’ll need to get a hole saw first.
 9   General / General Discussion / Re: DIY metal halide reflector  on: March 18, 2024, 09:06:33 AM 
Started by sol - Last post by Metal Halide Boy
I doubt it would overheat. Think about the 175w cram lamps in those old wallpacks!
 10   General / General Discussion / DIY metal halide reflector  on: March 18, 2024, 07:27:03 AM 
Started by sol - Last post by sol
I am considering using a 10 inch galvanized bucket as a reflector for a metal halide lamp of 175 watts. It would be a clear lamp with a protected arc tube (M57). My main concern is that it would possibly overheat. There will be a hole on top that would be big enough to accommodate a BT28 lamp and the lamp holder would be above the bucket. I’m wondering if it is something you would do or if I should go back to the drawing board. Many thanks.
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