Detailed Information About The Product:100% as description and high qualityIt is fit all kinds of general-purpose and have a DC motor speed with brush.All kinds of automobile motor car, (car wiper, car fan control cooling fan control, automobile air-conditioning fan speed control motor speed)Conveyor belt of the production line , pipe exhaust fan speed control and running machine control of motor speed, multiple computers parallel speed control, electronic fan speed control.All kinds of dc lamp was dimming, all kinds of dc heater adjust the temperature, This speed governor is the grade quality for the industrial , can work in below freezing environment.Colour: Blackmaterial: Plastic + metalWorking voltage: DC10V- DC 50VPeak current: 40AOutput power: 0.01-2000W (max)Recommended use range:12V 250W;24V350W;36V 400W;48V 500WQuiescent current:0.025APWM Regulation range:5-100%PWM Frequency: 200hzPCB Size:90x51mm(inch:3.5 inchx2 inch)Case size:105x55x40mm(inch:4 inchx2.2 inchx1.6 inch)operating temperature: -40Celsius~+85Celsius (40º F-185º F)Shipping Weight: 150gMain Usage: widely use to people DIY, hobby, scientic test, such as control computer Ipad fan speed, control bulb, control motor kymco, control xbox360, HHO Pluse Width modulator, Test Equipment, industrial automation, speed regulator module board support PLC, motor electric pump fan speed control, PWM HHO RC controller,remote control toys, etc......Package Contents:1* 40A DC Motor Speed ControlOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.About UsWe provide the good product with the best price,we support Wholesale/Drop Shipping Order1. For Drop Shipping order, please remark"dropshipping order", we will prioritize it.2. For Wholesale/Drop Shipping orders, if you have any ideas about the price or package,please contact us in advance,we will give you the best service to satisfy your demands.About Shipments1.We will send out the orders ASAP once your payment is completed normally.2.Please write your complete delivery address with correct phone number and zip code, especially please confirm your full name.About After-sale ServiceWe are reliable seller and we have our professional after-sale service for all of our customs. If there is any question about the order,please contact us in advance ,we will always here until you get a happy answer.About Feedback1. Please check the package and item when you get carefully to make sure there is no problem.2. If you have any problem or are not entirely satisfied with your package,please don’t be hesitate to contact us first before leaving negative feedback. We will resolve the problem to satisfy you.10674. If there is no problem, please leave us five star positive feedback.Your affirmation is our greatest motivation ! !