HY-9029 Cap Lamp with Battery Pack PRODUCT DETAILS LED Mining Cap Lamp The products life is more than 50000 hours. With an illuminance of 150Lumen This mining headlamp is specifically for mining and industrial use. High quality mining and industrial mining cap lamp. Battery (Lithium-ion) The battery has an over-charging, over- discharging and a short circuit protection function. Every battery cycled lifetime is more than 1000 times. The cap lamp head unit has a separate battery pack that you carry on you belt and it comes with it's own clip in charger.