Boost Converter Module, Keenso USB Mini Adjustable Output Voltage Step-up Board DC-DC 5V to 6V 9V 12V 15V 7W

Keenso-- 7W USB DC 5V to 6V 9V 12V 15V Adjustable Output Voltage Step-up Board DC-DC Boost Converter. Specification: Input voltage 3~6V, output 6-15.5V Maximum input current: 1.4A Long-term work Current: 1A Conversion efficiency: 79-90% Input: USB Male Interface, DC 3-6V Output : 2 PIN XH2.54, DC 6-15.5V If input dc 5v,output 6-15.5V Adjustable Power : Maximum 7W DC-DC Boost module working frequency 1.0MHZ. Operating ambient temperature : -40~+85 Degrees Celsius . Size: 47.5*16mm / 1.9*0.6in Weight: 7g / 0.2oz (approx.) Package list: 1 * Module Note: This is a DC - DC voltage converter module, please pay attention when using: 1, The input voltage should not be higher than maximum input range; 2, The output power cannot be higher than the maximum load for a long time. 3, The input power must be higher than output power, because of the power consumption of the module itself. FAQ: Q: Why the output voltage is lower than the nominal voltage? A :Because the input power is too low.Use a multimeter to test the input voltage, the input voltage is very low at this time.