3Pcs DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A
Shipping:Standard Shipping about 10-25 business days
Name:Step down voltmeter module
Input voltage:DC 4.5 ~ 40V
Output voltage:5V (when the input voltage is between 6.5V ~ 40V)
Size:approx 5.7 x 2 x 1cm(L x W x H)
Application:can be used on car, electric bike, motorcycle for voltage measurement and to charge phone, iPad, Mp3 etc.
The voltmeter has automatic calibration function.
With reverse connection protection.
With overheat protection and short circuit protection.
With USB power indicator light.
High efficiency and low ripple.
When you need to charge the mobile phone, Ipad, MP3 and other digital products, touch the inchoutput enableinch button, then the USB power indicator light on, the USB output voltage 5V ; When you need to turn off the digital tube, touch the inchlow powerinch button, then the module into the ultra-low power standby mode, USB output is also turned off accordingly.
3 x Step down voltmeter module
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