3.3V output: Input 4.5-30V, Output 3.3V (±3%) 5V output : Input 6.5-30V, Output 5V (±3%) 12V output : Input 13.5-30V, Output 12V (±3%) AJD output : Input 4.5-30V, Adjustable Output 2-28V Maximum output current per channel : 3A; Overall maximum load power: 50 watts Working frequency 150KHz. Input reverse connection protection Built in thermal shutdown function,Built in current limit function,Built in second current limit function Operating Temperature :-40°C to +85°C Storage Temperature : -65°C to +150°C This is a DC-DC voltage converter module,Must be noted when using: 1 Input voltage can not be greater than the maximum input range 2 Output power can not be greater than the maximum load for a long time 3 Input power must be greater than the output power, because the power consumption of the module itself size:88x55x15mm Material:plastic colour:green Package Contents: 1 * DD31AJQA 3A 4-channels DC DC Step-Down Buck Converter Module Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.