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While LEDs do produce some waste heat, efficient ones convert 50%+ of the input power to visible light, so it's less than you might think (compare to ~10% for i
by benkuhn 7y ago
While LEDs do produce some waste heat, efficient ones convert 50%+ of the input power to visible light, so it's less than you might think (compare to ~10% for incandescents, iirc). The bulb I have doesn't have a perceptible effect on my room temperature (although I guess it probably does cause the thermostat to turn on a tiny bit less often).
- Sinergy2 7y agoCan you give an example of an LED bulb installation with 50%+ luminous efficacy? Perhaps you are thinking of the raw lumens/watt coming out of lab-grade LED material without considering other system draws (cooling, power conversion)?
- Marsymars 7y agoThat visible light is still mostly ending up as heat in your home though, other than what spills out of windows.