Three types of light intensity for optimum reading or writing, Easily bends to provide light at the optimum angle , Dimming feature controlled by a simple touch of your finger, Blue light indicator signals when 10-20 minutes of power is remaining, Use cable provided when charging. Charge time is 2-3 hours. Red LED light on bottom indicates it is charging . Use time is 3-30 hours, depending on brightness of light . Powered by a lithium-Ion battery, inserted. Complies with Prop 65. 22.125" L x 2.375" W x 0.75" H. Price includes a Laser Engraved Logo. Imprint area is 2.25" W x 1.0" H on Top of Light Arm. Call for multi-colour or multi-location imprints or for rush delivery availability.