33V output: Input 45-30V, Output 33V (3%)5V output : Input 65-30V, Output 5V (3%)12V output : Input 135-30V, Output 12V (3%)AJD output : Input 45-30V, Adjustable Output 2-28VMaximum output current per channel : 3A;Overall maximum load : 50 wattsWorking frequency 150KHz.Input reverse connection protectionBuilt in thermal shutdown function,Built in current limit function,Built in second current limit functionOperating Temperature :-40C to +85CStorage Temperature : -65C to +150CThis is a DC-DC voltage converter module,Must be noted when using:1 Input voltage can not be greater than the maximum input range2 Output can not be greater than the maximum load for a long time3 Input must be greater than the output , because the consumption of the module itselfsize:88x55x15mmMaterial:plasticcolour:greenPackage Contents:1 * DD31AJQA 3A 4-channels DC DC Step-Down Buck Converter ModuleOnly the above package content, other products are not included.Note: Light 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.