Caplamp: 1. 4Ah 2. 3.7V 3. >500 cycles battery ... Miner lamp, L - Lithium battery, 4 - 4Ah---battery capacity, L - LED illuminant, M - Maintenance freeb. The green light in lamp head ... integrated 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 ...