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%) Adjustable 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 secondary current limit function Operating Temperature: -40C to +85C Storage Temperature: -65C to +150C This is a DC-DC voltage converter module. Important usage notes: 1. Input voltage must not exceed the maximum input range 2. Output power must not exceed the maximum load for extended periods 3. Input power must be greater than the output power due to module self-consumption Size: 88x55x15mm Material: Plastic Color: Green Package Contents: 3 x DD31AJQA 3A 4-Channel DC-DC Step-Down Buck Converter Module Only the above package content is included; other products are not included Note: Lighting and display differences may cause slight variations in color between the image and actual item. Measurement error allowed: +/- 1-3cm