1.rechargeable led emergency head lamp 2.7 LED bulbs 3.great quanlity,low ... bright LED bulbs, longlife of usage.2. Adopting high-capacity rechargeable lead-acid battery, 1200MAH3. AC:110V--240V, DC:4V ... , then can be used 18--20 hours continuously6. The head can be adjusted into different angle (90 degree to 175 ... and always appreciate your promotive advice. YJ-1882 LED rechargeable head lamp/ light