... , non-breakable. korea made LED 0.5w the life expectancy is over 60,000 hours. Ni-MH 80mAH re-chargeable battery ... continuously. Charging voltage is 12v suitable for car, truck, boat, ship and ATV sand car etc. Great for use for home for example sudden power ... cargos, luguages4) park, travel and urgent use. 5) hiking, asking for aid, climbing, pet go-around. 6) party and KTV etc ...