This Purelite Rechargeable Daylight Lamp is the perfect way to light up your desk! There's a cable included for USB mains operated or battery power making it fully portable, and the light is rechargeable for use of up to 210 minutes. This has touch sensitive light controls, which gives off colour temperatures: cool, natural and warm. These lights help you see the finest of detail with perfect clarity, allowing you to work for much longer without straining your eyes. There is less glare, ensuring less damage is done to long-term vision. • Size: 27 x 5.5cm (10.6 x 2.2 inches) • Rechargeable for use of up to 210 minutes • Three colour temperatures: cool, warm and natural • Touch sensitive light controls • Less glare to minimise eyestrain • USB cable included • Low energy and low heat output • 280 lumen brightness • 180-degree lamp angle