Miner's hat match with head light,explosion protection, lightweight,intelligent protection,durable bulb, rechargeable Model:998Battery: 4V2000MAH (Rechargeable)(lead-acid battery)continuous illumination hours:≥11h(7 pcs of LED)Function:Miner's hat match with head light,explosion protection,lightweight,intelligent protection,durable bulb,rechargeable 998 Mining lamp