DC Power Converter Step Down Module DC-DC 2.8V~5.5V input positive and negative 12V output 5V to 12V DC conversion
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![Power module 2.8V~5.5V input positive and negative 12V output 5V to ±12V DC conversion board
Power module 2.8V~5.5V input positive and negative 12V output 5V to ±12V DC conversion board](http://ae04.alicdn.com/kf/H357799ac71744650aaa1c172c8b92c95R.jpg)
83%
$0.61
Power module 2.8V~5.5V input positive and negative 12V output 5V to ±12V DC conversion board
![10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring
10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring](http://ae04.alicdn.com/kf/H33e3e3237b934934a72d39f5eb3a973e6.jpg)
1%
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10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring
![10PCS AA Battery Positive Negative Conversion Spring Contact Plate For the 5th battery spring
10PCS AA Battery Positive Negative Conversion Spring Contact Plate For the 5th battery spring](http://ae01.alicdn.com/kf/H6d90aa4101904d09869a5f47e09f2ea8t/10PCS-AA-Battery-Positive-Negative-Conversion-Spring-Contact-Plate-For-the-5th-battery-spring.jpg)
1%
$0.68
10PCS AA Battery Positive Negative Conversion Spring Contact Plate For the 5th battery spring
![10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring
10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring](http://ae01.alicdn.com/kf/H6ba0bf00bf7d4b688993178d071aefa1O.jpg)
1%
$0.29
10PCS AA Battery Positive Negative Conversion Spring Contact Plate For The 5th Battery Spring