Check the listing for details. 10W 12V 24V Laser Driver Board for Laser Engraving Module Cutter Engraver Head. Condition: New. Listed at 17.99 USD. Feature: 1. Input voltage: Compatible with 12V and 24V DC input. 2. Adjustable current: external 1-5V PWM voltage signal 3. PWM signal description: Frequency range: 0.2-10KHZ. 4. Over-temperature protection: Over-temperature regulation current, when the core temperature of the driver board reaches about 135 ℃, it will automatically reduce the output current. Prevent the circuit from being burnt due to excessive temperature. 5. Overcurrent protection: Abnormal overcurrent occurs, and the current in the circuit is quickly reduced to a safe level, thereby protecting the circuit and the load. 6. Dimensions: 40*40mm. Note: The voltage of the FAN interface is equal to the input voltage, so you need to pay attention when using this interface. 12V Driver 24V Driver