... 72.5%, 95%BUTTON INSTRUCTION1. Select Button: When the corresponding indicator light turns off, press ↑ ↓button to adjust PWM value 5%- ... EDC itself, Open the power switch, then open RED4 Power, the corresponding indicator lamp will be light, display will show 00.00 ... the arrow ↑ ↓. Close the RED4 POWER switch, oil pump power off. Press Select button, indicator lamp light, and press arrow ↑ ↓ to choose ...