This is a kind of fine quality high power SCR voltage regulator, stepless regulation, helps to adjust speed, temperature, voltage and light. Adopt high temperature resistant FR-4 circuit board, original imported SCR chip, all aluminum thermal fin, precision resistor with high voltage capacitor. Separate switch control, freely control the input power and cut off the power supply. No carryover and no delay, with peak voltage absorption circuit. You can have a try. Features: Mini size, portable and lightweight, high power, easy to use. High power SCR voltage regulator, stepless regulation, help to adjust speed, temperature, voltage and light. Adopt printed circuit board High temperature resistant FR-4, original imported SCR chip, all-aluminum thermal fin, precision resistor with high voltage capacitor. Separate switch control, freely control the input power and cut off the power supply. No carryover and no delay, with peak voltage absorption circuit. Flame retardant insulating outer