‎21 centimeters

【Durable Material】 This magnetic work light rechargeable led is made of aluminum and heat-resistant plastic, dissipates the heat effectively, prolong the life of the lamp. Thanks for the lightweight material, easy to carry with the handle. 【Rechargeable & waterproof】Built-in rechargeable battery, can be recharged by 12V DC car charger and 100-240V AC/DC standard power adapter (package includs those charger). Charge it 4-5 hours(fully charged), and use it 5-6 hours with 50% brightness. IP 67 waterpoof rate. 【Magnet Base & Handle】 Adjustable bracket provides multi-angle illumination, magnet base and portable handle make your hand free to do other things in the night. Great for car repair, home lighting, camping, hiking, power outages, emergency