Function:. Good compatibility: can apply to 40W laser lamps from different manufacturers.. High safety: the power input and output are completely separated to avoid electric shock. High safety: the power input and output are completely separated to avoid electric shock. Open circuit protection: with well-grounded enclosures. Application:. Power is adjustable by TTL control or by 5K variable resistor, small design with excellent PWM control circuit. It supports any CO2 laser up to 40W. Application for engraving, cutting sealing, etc.. Control laser power:. By adjusting the power output current through a resistor. By PWM control (size is TTL voltage level). Specification: Power output: 40W. Relative humidity: ≤ 85%. Cooling method: natural air cooling. Input voltage: AC 110V-220V adjustable. Maximum output voltage: DC 25KV. Maximum output current: DC 20mA. Environmental requirements: temperature-10 ~ 40 ℃. Isolation withstand voltage: input-output, input-housing: AC2000V-10mA-60s;. Response time (from input time to output current to nominal value): ≤ 1ms; Package includes:. Power supply 1x40W.