Quote:
Originally Posted by SiriusHardware
The replacement bulb is also colossal compared to the original thin tubular bulb so it remains to be seen whether it will physically fit into the space available. It won't be possible to fit the protective glass over the top but that is mainly there to stop people from touching the dangerously hot halogen bulb. The replacement should run cooler.
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I don't think the glass is to protect from heat. Pretty sure the glass would also be hot enough to cause a nasty burn.
I would think that the glass is there to absorb UV light that can cause damage to skin. Not all halogen lamps emit this (depends on the glass they are made of) but the manufacturer can't be sure you would replace it with a UV safe one.
There was a particular product manufactured by various companies. Some protected the plastic lens against potential damage from non UV protected lamps. Others used UV protected lamps but then customers got upset when they didn't buy the 'right' lamps from the original manufacturer and the lenses yellowed.