Label main information:Controller for DC brushless motor,Model:DQHB2.6_CD3F-6,Rated voltage:DC36V,Rated current:7A,Low voltage protection:DC31V±0.5V,Brake input:High-level. Size：LxWxH(cm)8.3X4.6X3.0,The distance between the two mounting holes is 11cm. Shell material: the main body is aluminum alloy, the mounting hole is iron. Harness introduction:13 connectors,these plugs are all diffrent,so there is no error connection. Easy installation:It is recommended to plug in the other plugs first, check again, and finally connect the battery plug. This DC36V Controller is suitable for JETSON Bolt Pro,Bolt Up 14'' Electric Ride-On and dyu D3F,D1F Electric Bike,It is New Model DQHB2.6_CD3F-6,The Old Model DQHB2.6-CD3F has been discontinued. The difference between the new and old models is that the Brake input is different (the new is High level, the old is Low level), but there is no impact on the use of it, please feel free to buy it. It has 13 connnectors.