BUILT-IN UPGRADED HIGH-END BATTERY The discharge current remains constant until the end, so both two brightness levels and SOS mode will not dim due to low battery power. The battery is protected by both the internal board and the power board, ensuring over-charge and over-discharge protection for safety and longevity. Full charging time: 3.5 hours, until all four indicators are stable and not flashing. After fully charged, the high brightness of the work light lasts for 3 hours, while the low brightness lasts for 6.5 hours. Please use a 5V 2A adapter or above to charge this mechanic light. (Adapter not included in the package.) WHY CHOOSING ZOEYLTG LED WORK LIGHT? IMPORTANT NOTICES: Magnets cannot adhere to surfaces made of aluminum alloy, carbon fiber, or surfaces with very low iron content.If the underside of the engine hood is made of aluminum, the magnet will not work.Please stick it to surfaces with a high iron content to maintain the effectiveness of the work light.Upgraded with silicone full coverage to prevent the magnet from detaching without affecting its strong magnetic properties.To achieve an IP54 waterproof rating and enhance product durability, the net weight of the work light has been increased to 1.34 lb. MORE DETAILS OF ZOEYLTG WORK LIGHTS Hidden Swivel Hooks 360-degree dual rotating hooks are hidden at both ends, allowing for more flexibility and versatility in use while enhancing the product design level. Excellent Impact-Resistant ZOEYLTG work light is made of rubber corner protectors and reinforced ABS shell, military-grade materials and has successfully passed a 6-foot drop test. Lightweight & Portable TPE comfortable patch for a more ergonomic experience. It is convenient to carry around with its bar-shaped design. Keep one in the trunk of vehicle for emergency. WIDE APPLICATIONS FOR WORKING SCENARIOS