Solar Powered Watch Charger The solar watch charger is the perfect solution to keeping your watch charged up and no more waiting for the sun to shine. The solar charger uses cool LED lamps as the electric light source, delivers light strength similar direct under the sun in summer but it never heats up your watch. 8H Timing Off Lamp Watch Charger The eco watch charger upgrade 8 hours timing off function design to charge your solar watch in house, Use the array of 22pcs bright led to simulated solar spectral, and powered by any USB device such as computer, power banks, adapters, etc. Avoid exposure your watch under the direct sunlight, never fades the dial and straps of your expensive solar watches.