แบบพกพา 80 Lumen พลังงานสูงทำให้เครื่องจักรหมวกโคมไฟ 3.7V 4.2V กับกรณีพลาสติก PC

Portable Mining Cap Lamp 3.7V Rated Voltage For Mineral Industry Applications: It is suitable for mineral industry, tunnel projects, construction and maintenance for power, communication, highway, railway at night, night lamp for cutting off rubber plant and absorbing mucus and for lighting a flood, rescuing and marine use Specifications: No. Name of parameter Unit Value Remark 1 Charging voltage V 4.2 2 Rated capacity Ah 2.8 3 Rated voltage V 3.7 4 Continuous lighting time h