Product name: Zoom Flashlight Product size:6.8*1.7*1.3in Battery:5000mAh Working time: about 20h Lumens: 2000lumens Mode: High light-low light-flash Product material: Aluminium alloy Power supply method: USB Maximum range: about 500m It can be used as a battery to provide emergency power supply for electronic products such as mobile phones Product features: 1. Rechargeable flashlight with powerful and adjustable beam for outdoor and household use. 2. Ultra-bright light output for enhanced visibility in various settings. 3. Adjustable focus feature for customized lighting needs. 4. Battery level indicator ensures you're always aware of power status. 5. Compact and portable design, ideal for students, emergencies, hiking, and outdoor activities. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact me we will give you some suggestion, but it is for you reference only. Package includes: 1 set Flashlight