Product name: Motion sensor headlamp Product size: 78*73*40mm/3.1*2.9*1.6in Battery: 1200mAh Working time: 3-4h Mode: Strong light - flash - Side light - Side light flashing Lumens: 1200 lumens Product material: ABS Product features: Outdoor headlamp with gesture sensing and dual COB side lights for added visibility. Convenient USB charging feature for easy recharging on the go. Built-in battery level indicator for monitoring power status. Perfect for hands-free illumination during outdoor activities such as camping, hiking, and cycling 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 pc headlamp