The Natural Light Smart Lamp R10 is ideal for any art or craft work that requires attention to small details. Great for needlework, reading and drawing! The 3-step dimmer allows you to customize your light level for specific project needs. Daylight LEDS provide a comfortable, natural light. This lamp has an internal rechargeable battery and comes with a plug in power supply for outlets, and USB cable for computer or phone charger use. One charge provides up to 4 hours of light.