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Lamp shade and housing 'bulb' rating?


Boss

Any form of enclosure around an incandescent light bulb has a maximum lamp wattage rating.
I assumed this was based on the maximum temperature the housing could safely handle as most of the power to the lamp was dissipated as heat.

Along came the whole new range of LED replacement lamps. What determines the maximum power rating of the shade or enclosure? Has this now shifted to maximum temperature the LED lamps can safely handle?

I have not seen a temperature rating for lamps of any type, but know from experience that flexible LED strips "don't like it hot"!

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