Features*Ultra Light Weight *Portable LED Headlight*Handy Protective Carry Case*Rechargeable lithium battery longevity*Convenient to Set up on surgical loupes*It is suitable for all kinds of surgical operation*Popular model among dental students,dental hygienists and dentists. Note:1. When use the battery power supply, you need to charge in time if brightness of the light significantly weakened.2. This product can only work in DC condition. It can not work while charging.3. Turn off the power when you do not use or charging.4. You can not use liquid cleaners to clean the product.5. You need to recharge in time when the battery power is not full, or the battery will be scrapped.Specification Portable LED headlightHigh intensity>15000—30000LuxContinuous run-time:>5 hourThe power of the LED bulb:3 WThe lifetime of the bulb:10000 hourThis Head Light is only suitable for our loupes product .All loupes are optional .It doesn’t apply to ordinary glasses.Very small volume and weightInput voltage:AC100V/240V/50-60Hz Package includes:1xLED head light1xAdaptor1xBattery1xBlack case1xUser’s manual bookPacking weight: Approximately 280g