Welcome to our store！</br> 1、The main body is made of nylon material, which is stable and does not fade, and has a long service life. 2、Quick lighting and identification, convenient for outdoor activities at light, safety. 3、IPX8 level strong waterproof, soaking in water for a long time will not affect the use. 4、Constant light and flashing patterns can be switched at will to adapt to different states. 5、Can be connected to the helmet rail, fit for 2.4cm/0.9in wide helmet adapter or other helmet accessories. <p class="wang-edit-text">Item Type: Helmet Survival LampMaterial: Nylon Weight: Approx. 17.0g/0.6oz Battery: 1Pcs CR2032 Button Battery 240mAh (built-in) Type: Signal Lamp Applicable Scenarios: Outdoor quipment, movie props <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x&nbsp;Helmet&nbsp;Survival&nbsp;Lamp Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>