The ANDYCINE D-Tap to 2-Pin DC Power Cable with Intelligent Circuit Protection uses an intelligent cell inside a small black box that is located between the D-tap connector and the other end of the cable. Inside this box is circuit protection that allows the D-tap to continue working even if you have plugged it in the wrong way.
The circuit protection device in the Safe D-tap will automatically rectify the polarity problem regardless of how you are using the D-tap connector. This is very much a set and forget product. You don’t have to do anything or keep an eye on any type of illuminated LED light.
The Safe D-Tap uses gold-plated connector pins that are claimed to provide a wider contact area and lower internal resistance. The metal pins are integrated during injection molding to reinforce the D-tap connector for better durability.
