JIAEN LED Solar Book Light Soft Clip for Reading,Crochet,Handicrafts,High Low Light Settings N600 Solar and USB Eco Recharging for Kid The Solar Rechargable Book Light comes with 3 Powerful Leds, the lamp has 2 Settings, brightness is adjustable. Could meet various brightness requirements. The Led Light will have no flickering. The three HB LEDs have 50,000 hours continuous service life. The Clip-On Reading Light can be recharged with 2 options. The Solar Recharged mode will be the most energy-efficient, the most convenient. The Book Light also comes with a USB Cable. Weighs about 45g,it's probably the most lightweight lamp. Designed to avoid arm strain and remain comfortable while reading. It can work for over 12 hours after each recharging. The steel neck assures the light stays in place while reading in Bed, Car etc. This carefully built clip on Book Light assures the neck holds the light very firmly to avoid it moving while reading. 100% satisfactory service.If you don't like the lamp,pls refund,or we can resend the new one to you for free ASAP. Your satisfaction is our honored^_^