1. Built-in Battery Easy To Use And Clean anti safety Troubles, No Need For External Power Cords, No Need For External Batteries 2. High Quality Led Chips High color rendering lamp beads, no flicker, Multiple lamp beads LED patch combination 3. Wide Exposure Range: Light-transmitting lampshade, high-quality light-transmitting design, wide illumination range. 4. Super bright LED chip: Intelligent Protection Anti Over-charge and Over-discharge, Low Power and High Brightness 5. Multifunctional Rechargeable Emergency LED Bulb Night market stall/Emergency response lights up at one touch,no wiring required, High Capacity Lithium Battery, No glare Lighting, USB charging, High quality LED chip,IC Driver,Three-speed adjustment switch, Portable Hook, Long battery life, ABS special lamp housing. 6. Constant Current Intelligent Control Chip Control the battery for constant current, with effectively protect the circuit battery, and prolong the use time and service life of the product. 7. Large Capacity Lithium Battery Multi-cell lithium battery guarantees the endurance, the longest use is more than 4 hours after fully charged.