Portable Power Supply 30V 4.0A Large Screen Intelligent Temperature Control Fan BL1815 BL1820 BL1530 BL1840 BL1850

Input and Output: step up and down power supply, supporting constant voltage and constant current, with an input voltage range of 5.0-30V and an output range of 0.6-30V, providing a versatile solution Large Display Screen: This regulated power supply features a large screen with full viewing angle capability, ensuring clear and intuitive display for improved user convenience and ease of viewing Intelligent Temperature Control Fan: Built in intelligent temperature control fan, automatic start and stop, it activates when temperature exceeds 50 celsius or current exceeds 1A, ensuring safe and efficient use Item Type: Regulated Power Supply Protective Mechanism: Input Reverse Connection Guard Output Backflow Prevention Guard Input Undervoltage Guard: 4.7-30V Output Overvoltage Guard: 0-32V Output Over Power Guard: 0-51W Over Temperature Guard Over Time Guard: 0-100H Over Capacity Guard: 0- 9AH Over Energy Guard: 0- 9WH Parameters: Input Voltage: 5.0-30V Output Voltage: 0.6-30V Output Current: 0-4.0A Voltage Accuracy: +Celsius-0.5% Output Power: 35W Current Accuracy: +Celsius-0.5% Voltage Resolution: 0.01V Current Resolution: 0.001A Conversion Efficiency: About 88%

: Support Battery: 1 x Li Battery (not included) (For BL1815 BL1820 BL1530 BL1840 BL1850 18V-21V Battery) Product Material: ABS Product Size: Approx. 8 x 9.5 x 10cm Celsius 3.1 x 3.7 x 3.9in