... CE&ROHS compliant Lifespan:50,000hs 2 years warranty High ower LED mining helmet safety lamp series(30/40/60/80W) ... .2. Lamp light source adopt imported high-power ultra-bright LED chips, to ensure high brightness, LED with a lifespan of 50,000 -10 ... achieve the best lighting effects4. . Built-in constant current high performance power source, voltage :AC85V-265V, Global general,easy to use .5 ...