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However, in our experience, this cost are rarely occur in small batch orders like us.
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800W 30A DC-DC Step Down Buck Converter High Power CV CC Adjustable MCU For Solar Power Charging. - Output power: 800W Max. - Output current: 30A Max. The maximum output power of this module is 800W.
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eBay
Output output range: DC3.3V~18V. Output current range: maximum 2A. Simple application, dual current input. Wide range of applications, suitable for a variety of industrial scenarios, enjoy the fun of DIY!
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Output anti backflow: None (charging the battery, connecting the output to an inductive load, such as adding anti backflow diodes when connecting to the motor). The current detection of the module is a low-end detection.
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eBay
Output accuracy: ±1%. Switch overshoot: 10%. Frequency range: 47HZ-63HZ. Current range: 0-2000mA. Standby power: <150mV/230VAC. Rated power: 10W. Current range: 0-1500mA. Rated power: 12W.
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