... power LED light temperature-15C~ 40C protection circuit in 0.5 milliseconds automatic power cut off Description1. Features 1 ... circuit or other circuit fault, the protection circuit in 0.5 milliseconds automatic power cut off. 2, the main ... mm high 80 mm 4Ah the whole weight of 0.45 kg lights 8,Battery storage life: 2 ... -voltage of 5.5-8 V, current less than 0.8A. 2, charging: Miner`s lamp holder will be ...