Features: Low speed stable output, fast speed without shaking. Mainly suitable for single-phase circuits with alternating current 50Hz and input of AC220V. Small size, wide speed ranges, and better mechanical characteristics. Widely applicable as a speed control drive device for production lines in the packaging, printing, food, electronics, instrumentation, and clothing industries. Great for Direct Current motors, providing stable low-speed output. Specifications: Material: Plastic Type: 2A, 4A(optional) Size: approx. 113x60x100mm/4.45x2.36x3.93inch Product model: DC51 Input: AC220V Output: DC24V 48V 90V 180V 200V (adjustable) Installation method: panel type Suitable motor: direct current motor (permanent magnet brushed with 2 wire) Supporting motor power: 30W-180W (power varies depending on direct current voltages) Package Includes: 1 Piece Motor Dedicated Controller note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.