Can someone teach me a few things about projector lamps?

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The LED light source is filming directly from the gate with a camcorder.

After placing my email I checked with our national supplier of electrical odds and sods here in the UK, Maplins, and they do a 12V LED bulb. for some reason domestic light Halogen Reflectors have a slightly different socket, but Maplins sell them to too so all I need to think about is the diffuser. I wondered about this and then realised there is now a lot of packaging that shout provide a suitable source. Just hope I can get the camcorder to film down the barrel of the projector.

For that purpose I think most any nightlight would work. It doesn't have to look pretty if it's just temporary for a transfer. I don't remember where it was but once I looked up a very good article somewhere about someone getting a digital microlens and mounting it in the gate like that. Along with a less powerful light.