Clip Touch Lamp, iRainy Portable Flexible Neck Led Light Desk Table Lamp Touch Sensor Control 3 Level Adjustable Brightness with Clip Rechargeable Lithium battery Energy Saving USB charge LED Desk Lamp 1. Touch sensor switch is applied to this lamp, and it has 3-levels of different brightness: single touch gives lowest brightness, double touches medium and three touches the strongest. Adjustable brightness can meet various demands of different environments; 2. After fully charged, the lamp will last 12 hours consecutively in the dimmest light; 8 hours in medium light and 5 hours in brightest; 3. The batteries are discharged when lamp is dimming. Please stop using the lamp, and recharge it in time, lest it damage the performance of the batteries and reduce its life time; 4. 3-level dimmable lights clip-on 360 degree rotation bed side light ,learn and read desk lamps small table lamp with clip, bedroom writing USB plug Lamp, lamp with clip, bedroom writing USB plug Lamp; 5. For space: living room, bedroom, study, studio, office.