The KL2LM headlights body is made of high intensity engineering plastic ABS,with full sealing construction,suitable for all kinds of bad working environments,light weight and small volume ,it can reduce mine labour intensity,improve production efficiency. 1,Li ion battery as power supply,with more automatic protection function that donot produce electric spark.It s free from accident. 2,It has special Li ion charger,donot need to charging maintenance worker and other fees.It s free maintenance This is a new style of cordless and portable and digital cap lamp, light weight and long lifetime Safety: All in one case with PC plastic material , make very good feature of explosion-proof. Protection in electrical short-circuit, automatic power-off on the socket , 100,000 hours LEDs Lifetime Reliability: The high strength case , optimized structure design and MCU control make the product more reliable Portability: Just a head lamp , Small in size , light in weight (only 160g for whole product), simple charging, easy usage Efficiency: more than 12hours at full brightness. more than 1200lux at starting time, and more than 700lux after 11 hours continuous lighting. Battery usage lifetime about 1000 cycles. Display cap lamp number , time , battery capacity by 4 LED digital device (four squares is full , three squares means 3/4 capacity , two means 1/2 capacity, one means 1/4 capacity, one square blink per 20 sec. Means have to be charged again and the battery capacity only can light for about one hour) . Environmental: Li-ion battery is free for maintenance, and the material of li-ion is environmental, use 1Watt high power LED as the main light, and 6pcs 5mm backup LEDs to save power Economy: three times longer than lead and acid cap lamp and saving in maintenance makes the product more compatible in price When the energy is not enough for one hour illumination, the digital will flash, which can remind the mining worker to leave the workplace. Charger input power: AC100-240V / 50-60Hz. Charging time: 5 hours, continuous discharging time: more than 12 hours for main light, more than 20 hours for backup light. Type of protection: EXib II BT4 (Zone 1 and 2) Type of Certificate: MA, EX, CE/ATEX, DME Protection category: IP67