Product features: This desk lamp switch replaces the switch, the brightness can be adjusted, and the slow light can be adjusted, making it more convenient and flexible to use. 100% brand new and high quality Product name: dimmer knob adjustment switch Product color: white, black Rated current: 1A [Size] Outer size: 74mm * 33mm * 24mm (L * W * H, excluding the height of the knob cap, the diameter of the knob cap is 25mm) The product contains: 1set Dimming switch