Feature: Ultra-bright LED work lamp: Offers lighting in challenging working environments. You can adjust the brightness from 0lm to 700lm. Rechargeable & overcharge protection: The device will automatically turn off once fully charged (the light on the circuit board activates overcharge protection automatically), USB cable included. Power capacity indicator: The rear of the light features a 4-level indicator to show power capacity. It can provide brightness for up to 12 hours at medium level. Powerful magnetic forces: Features a 20lb magnet base and 360-degree swivel. You can attach the lightweight work light to any metal surface or hang it using the hook. This allows for multi-angle illumination and hands-free operation. Specifications: Battery: Built-in battery, 2200mAh Light Source: COB Working Voltage: 3.7V LED Lifespan: Over 10,000 hours Style: A Size: 40.5cm Material: ABS Color: Black Package Contents: 1 x COB LED work light Only the above package content; other products are not included. Note: Light reflection and different displays may cause the item's color to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.