SuwaSWE SuwaSWE-BL02 Eye-Care LED Desk Lamp 3 Lighting Modes 5-Level or Stepless Dimmer Touch-Sensitive Control Panel, 30-Min Auto Timer DC Input USB Output(Charge Phone), Matte Black 30-min auto shut off, color temperature adjustable, brightness 5-level and steeples dimming, ul listed ac charger, USB outlet support to smartphone Adjustable color temperature: 2800k ~ 6000k (warm light - daylight- multi model), up to your preference Adjustable brightness 5-level(1w-2.3W-3.3W-4.2W-5w-6w)& steeples, 2 patterns of adjusting brightness to meet different operating habits 30 min timing switch off: touch and hold on the 'power switch' 1.5S until indicator blinks to start the 30-min timing switch off function Corded-electric UL listed AC charger included