Overview: Feature:1.RPM Alert 2. Control voltage from 5V to 12V3. Channel supports up to 12W4. Manually adjust from full speed to low speed 5. Suitable for other high RPM fans 6. Stop working alarm Speicification:1. Input Voltage: 12V2. Output Voltage:5-12V3. Output Current: Up to 1000m A4. Optimal Wattage: 12 W Note: If the color out of our stock, we will ship the item in random. Specification: Weight Approx:45g Size Approx:7.5 x 2.5 x 2.5