Eye Protection: 18 individual LED bulbs in the O-ring light emits 5000-5500k natural light, no radiation, no flicker, with 3 levels of brightness adjustable, make your eyes comfortable even after a long time of reading or working. Shape Random: Humanized design with a flexible neck, the lamp is able to reach just about almost every position you can imagine. Set the shade to provide the best lighting with a simple twist or bend. Energy Saving: With built-in rechargeable 1000mAh Lion battery, the lamp can last 5 hours at full brightness. Easy to Use: Touch-sensitive switch offers 3 brightness levels; USB cable supports convenient recharging from laptop/computer or other USB ports; Flexible and bendable goose neck with 360-degree adjustablity provides the best lighting angle.