The housing/reflector for the lights is plastic, the lenses are glass.
Once installed the lights were much brighter. Then I noticed the glass was foggy looking, as if it had moisture in the lights.
Took one out to clean it. I could not. The I saw the plastic (reflector side) was melting. Some kind of gas discharging from the evaporating plastic landed up on the inside of the glass.
Ruined the lights/bulbs, lesson learned
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