The light is bright white (but not cold) light. As a reading lamp ideal. The light source is replaceable (GU10 socket) The exact dimensions (were previously not in the product description): * Diameter / height of the plug cylinder: 80 mm / 30 mm * Length of the flexible arm part no: 130 mm * Length of the flexible arm part: 75 mm * Diameter / height of the lamp socket: 32 mm / 40 mm -------------------------------------------------- --------------------------------------- Possibly to consider before buying: The lamp (s description.) Is not dimmable - glare possible. The flexible arm is relatively short, it can be bent only to about 45 ° down here. The outlet should therefore not be placed too high. The protective cylinder over the lamps is quite short. The LED lamp protrudes relatively far out of the socket. Visually beautiful is another way ;-)