Features: Zero hysteresis, zero delay, on behalf of the absorption voltage circuit to effectively protect high power thyristors against overvoltages, anti-spike, RC absorption of multiple protection. This product is the metal shell thickening of the shell material, high temperature, anti-flame, no rust; Design of a compact and product, five-sided cooling mouth not heat, no desuitable for mation, safe and durable. The shell is equipped with a universal multi- power socket and a power indicator, stepless adjustment knob voltage regulator, convenient and fast! Application: electric oven, heat water heater, dimming, small motor speed, electric temperature iron, etc., so as to get the temperature, adjustment, speed, voltage regulation effect. Input voltage: AC220V 50/60Hz Output voltage: 10-220 V adjustable (output voltage is lower than the input voltage) Rated current: 9A Maximum current: 18A Maximum power: 4000 W (220 V) EU plug can plug in suitable for this socket When trying, it must be connected to the load! Plug Type: UK plug,it applies to Malaysia, the United Kingdom and so on. Colour: black Material: metal Size: 11.5x10x6cm Package Contents: 1 * Electronic regulator 1 * UK plug 1 * English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.