This product is mainly used in solar folding bags and solar chargers, and can charge digital products such as for Apple mobile phones, MP3, MP4, power banks, etc. Wide input voltage range, input DC voltage 6-30V, can stably output 5V DC voltage. Output current can reach 3A. High conversion efficiency, up to 95%. USB female output, can charge 5V digital products.<br><br>Input: 5-30V 3A (maximum) Output: 5V 3A (maximum) Interface: Dual USB Industrial temperature range: -40℃ - +85℃ It's DIY kits, needs to finish by yourself. Colour:Black Material:PCB+Plastic<br><br>Package Contents: 1 x Circuit board + housing + screw kit<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.