10W LED Clip on Light, Desk Lamps with 3 Modes & 2M USB Cable 10 Levels Dimmer Clamp Lamp,Adapter Included (Black) Dimmer Clip on Light: The Flexible clamp light has 3 colors mode & 10 levels light, Max 600 LM 360 Rotation with Metal gooseneck: It is easy to twist the gooseneck to set the perfect lighting angle and hold position perfectly. 2M USB Cord and 5V / 1A UL Listed AC Adapter IncludedNo wasting money on the batteries. The USB cord is 2 meters that is long enough to connect to the wall socket. An UL Listed AC adapter included. You can plug the USB cable in any USB port to power it, such as computer, laptop, phone charger etc. Eye Protection Clamp Light: Led clamp light flicker-free and non-glare light, ideal for a long time of reading or writing, less fatigue of the eyes. SMART FUNCTION: The lamp will be automatically powered off 1 minute later after keeping pressing the power button more than 2 seconds