Item Type: DC Motor Speed Regulator Material: ABS Input: 110VAC Output: 90VDC Overall Size: Approx. 100x60x114mm/3.9x2.4x4.5in Opening Size: Approx. 81x53mm/3.2x2.1in Installation Method: Panel Screw Installation Package List 1 x DC Motor Speed Regulator 1MULTI FUNCTION: This motor speed controller supports emergency stop and forward and reverse functions, more flexible and convenient to use. 290VDC OUTPUT: The motor speed regulator adopts 110VAC input and outputs 90VDC, suitable for DC motor. 3HIGH PERFORMANCE: The DC motor governor has high accuracy, wide speed range and good mechanical characteristics. 4ABS SHELL: The electric motor speed regulator uses high strength ABS shell, which is sturdy and firm, safe and reliable to use. 5SIMPLE INSTALLATION: The motor speed regulator adopts panel screw installation method, which is easy to operate.