They own europe coal mine explosion-proof certificate -atex. Main light adopt led, has a high brightness and long life span. 1, atex certification. 2, 25 yrs specilized in miners cap lamp. 3, lighting time>11 hours; max illumination>2200lx. 4, ip65 protection grade;explosion proof & waterproof; lithium manganic. 5, service life>2yrs; rechargeable battery-lithium manganic. 6, 0.2 kg; rated voltage 3.7v. 7, we also welcome customized.
