This motor PWM speed controller features screw terminals for easy installation. Input voltage range: DC 6V to DC 60V. Compatible power supplies: 12V, 24V, 36V, 48V. Output current: 0-30A. Do not connect to 220V or 110V household AC power. The LED display shows the percentage of actual speed relative to maximum speed, allowing clear and accurate readings. For proper operation, input voltage must match the rated voltage of the DC motor (6V–60V). Dimensions: Speed controller: 13 x 6 x 3.2 cm (5.1 x 2.4 x 1.2 inches) Button switch: 4 x 1.8 cm (1.5 x 0.7 inches) Potentiometer: 23 x 20 mm (0.9 x 0.8 inches) Knob: 15.5 x 23.5 mm (0.6 x 1.0 inches), inner hole diameter: 6 mm Equipped with a momentary start/stop switch, speed control potentiometer, and knob for smooth, stepless speed adjustment, delivering stable and reliable performance. Specifications: Speed control type: Potentiometer Speed range: 0–100% Control frequency: 15 kHz Wiring type: Screw terminal block Knob length: 18 cm Net weight: 120 grams Panel cutout dimensions: 92 mm x 56 mm Display type: Digital percentage (0–100%) Color: As shown in image Material: ABS Product size: 95 x 60 x 33.8 mm Package includes: 1 x Speed controller 1 x Momentary start/stop switch 1 x Potentiometer 1 x Knob Notes: - The digital display indicates speed as a percentage of maximum speed, not actual RPM. - Ensure correct polarity when connecting input power. - Do not apply 220V or 110V household AC voltage. - Input voltage must match the motor’s rated voltage (e.g., 12V motor requires 12V input, 36V motor requires 36V input). - Package includes only the listed items. - Color may vary slightly due to lighting and screen settings. - Size measurements may vary by ±1–3 cm.