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Small LEDs requiring zero grid or battery support in places of total darkness can be useful, especially if the cost is low enough.
by newnewpdro 7y ago
Small LEDs requiring zero grid or battery support in places of total darkness can be useful, especially if the cost is low enough.
- klodolph 7y agoIt requires a thermal reservoir and radiative cooling. This doesn’t sound better than a battery to me.
- newnewpdro 7y agoIt's a lot easier to fulfill the requirements of a thermal reservoir than it is chemical battery. The former can just be a chunk of repurposed garbage.
- klodolph 7y agoI’m not sure what scenario you’re thinking of where a reservoir, thermoelectric chip, and radiative cooler is easier than a (much smaller) battery and photovoltaic cell. Care to explain?
- outworlder 7y agoWhat is the useful life time of the thermoelectric chip versus a battery?