LED Miner Safety Lamp: 1. LED 2. Battery: >500 cycles 3. Lighting Time: >20 ... , L - Lithium battery, 5 - 5Ah---battery capacity, L - LED illuminant, M - Maintenance freeb. The green light in lamp head ... control chip in the lamp head. f. Adopt LED illumination with low power, small volume, light weight ... and comfort and portable wear.g. The LED illuminant has a long life of 25000 hours, which ...