कोयले की खान उपकरण

Description It adopts special intelligent chip, integrating on/off switch with LED light source control. The cordless cap lamp belongs to portable cordless miner’s cap lamp, getting rid of the traditional large size battery case and cable with high luminance, long discharging time and high efficiency. The weight of the whole lamp set is equivalent to the traditional lamp headpiece, with many lighting modes convenient to modulate. It can be charged directly on traditional