[rollei_list] Re: OT: Light bulb for slide viewer

  • From: Eric Goldstein <egoldste@xxxxxxxxx>
  • To: rollei_list@xxxxxxxxxxxxx
  • Date: Thu, 19 Aug 2010 15:18:50 -0400

James wrote:

>The issue with the halogen lamps is not that they have higher Wattage and 
>produce more heat, it is that the bulb itself gets hotter >(higher 
>temperature) and this can damage the socket.

As I mentioned, it can damage more than the socket. It can damage the
reflector, it can damage the slide, it can damage other internals.

>The only lamps that can produce more light with less heat are HID and 
>fluorescent lamps and I don't think that either of them come in >small enough 
>sizes for your application.  LED lamps produce more light (lumens) per Watt 
>but they do not radiate the heat, they get hot >and must be mounted on a heat 
>sink to dissipate the heat.

Yes, exactly. I think we are now on the same page.


Eric Goldstein
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