Z-Bar Mini High Power LED Desk Lamp in Metallic Black 4 High Power LEDs with lifespans of 40,000+ hours Built-in dimmer; ultra adjustable; long reach; desk clamp included Low power consumption; low heat; environmentally friendly (no mercury) 1 year manufacturer's warranty Dimensions: Base 7 1/2" diameter, Height 13", Extension 13", Lightbar 11 1/2"