Littlite L-18E-LED-3, Gooseneck Lamp, The LED-3 allows the user to adjust the colour temperature to the desired requirements and conditions, The rotary switch at the base of the lamp set enables the selection of warmth from cold 6,500 Kelvin over daylight in the range of 5,000 Kelvin as well as warm artificial light with a colour temperature of a pleasant 3,000 Kelvin, Light source: LED, Colour temperature: 6,500, 5,000 or 3,000 K, 12 V operation, Housing with rotary switch, Gooseneck length: 45 cm (18""), Power adapter included