The item is a professional and practical 2000W high power SCR electronic voltage regulator controller, which is mainly made of durable PCB board and electrionic components, and convenient to connect wire without solding. It is suitable for dimming, and temperature control. Features - Color: As shown - Material: PCB board and electronic components. - Size: 6x4.6x2.6cm - Working voltage: AC 220V. - Maximum power: 2000W (connected resistive load). - Voltage regulation range: 0V-220V. - Protection: anti-spike, surge, rc absorption (eoc). - Advanced circuit design, adopt driving resistive load ,0-220V precise adjustable without hysteresis. - Applicable for electric furnace, water heater, lamps, small motor, electric iron etc. - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you