... :1. Material : T6061 Aviation aluminum alloy, hard oxidation treatment. 2. Voltage : 5.0-12.6V (in this voltage range, use ... charging, overcharge protection, short circuit protection, turn lights and other functions Principal Applications: outdoor hiking, camping, hiking, cycling, fishing and ... illuminant directly, in case it will hurt your eyes ! 2. Don't take the lamp holder apart frequently ! 3. ...