ITEM NAME:DC6V-28V Speed Regulator Control Governor Switch Motor Speed Controller Module Product Description Description: Features: 1. With an on-line indicator 2. Clear wiring identification 3. Excellent material and fine workmanship Specifications: Purpose:Used for DC Motor Speed Regulation Maximum current: 3A Input voltage: DC6V-28V Material: Plastics Size: 50*32*15mm/1.97*1.26*0.59" Notes: DC motor governor connected with DC power supply, must not be directly connected to 220V AC household. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 XÂ Speed Regulator.Purpose:Used for DC Motor Speed Regulation. Included: 1 X Speed Regulator. Clear wiring identification. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.