It is a 200W Buck Power Supply Module/PWM Speed Controller/Driver Module/Adapter, Input voltage: DC 4~40V, Output voltage: DC 1.25~36V, Maximum current: 8A,  It has small size, high efficiency, long term stable and reliable quality,easy installation and use, Especially Suitable for DC Motor and other equipment etc.

• Product name: DC voltage regulator
• Voltage regulating mode: PWM modulation
• Input voltage: DC 4~40V
• Output voltage: DC 1.25~36V
• Maximum current: 8A(please add fan and make current less than 5A for a long term use)
• Maximum power: 200W
• Conversion efficiency: 94%
• Switching frequency: 180KHz
• Dimensions: 61 x 41 x 27mm

• The regulator combines XL4016 switching voltage regulation chip and MBR10200 double rectification, the maximum input voltage can be 40V, output voltage is 1.25-36V continuously adjustable.
• Multiple protection: over-current protection, over-temperature protection and short circuit protection, etc.
• Can be installed on panel: 1. drill a 7mm hole on panel; 2. put the potentiometer handle out of the panel; 3. lock the screws and install the knob.

• 1 x DC Voltage Regulator (PWM Speed Controller/Buck Power Supply Module/Adapter)