ITEM NAME:12V to 5V 3A USB Power Adapter Converter Cable Connector Car Charger Phone H2W1 Feature: manufacturing process and synchronous rectification technology so as the conversion rate is more than 96%, what's more, calorific value is extremely low. This module is poted by epoxy so it's waterproof, shockproof, moistureproof, anti-dust and flame retardant. The module boasts of automatic protection function when over voltage, over current, over temperature and short circuit braking and restore normal work after the.Output Current: 3A Max. Length of in-out wire: 10cm 13cm.