2 ms·
Afaik they're closer to black-body radiators than some narrow band emitter like LEDs, so they have to operate significantly above room temperature.
by the8472 2y ago
Afaik they're closer to black-body radiators than some narrow band emitter like LEDs, so they have to operate significantly above room temperature.
- MichaelZuo 2y agoHmmm, that seems like a significant disadvantage compared to fan heaters then. Where at least the fancier ones have a ‘cool touch’ design.