Industrial Grade IP68 LED Mine Lamp 15000 Lux Rechargeable Headlamp & Safety Helmet Light KL5LM(D) has low power indication to remind the user to recharge it when the power is not enough.It adopts 7800mAh rechargeable li-ion battery (LG brand) and advanced LED technology with bulletproof PC housing and Toughened glass lens, and also MCU control charging system charger,charging time is only 6 hours