Panel is 3D printed in tough nylon plastic. It replaces the panel in the D-Pillar. Use of a relay to carry larger loads is recommended. Not all switches have the same load (Amp) capacity. Refer to drop down list for current ratings.SPST (single pole single throw) is simple on/off switch (most common)SPDT (single pole double throw) is on/on switch which can also be used as on/off. These can also be used for 2-way control with another SPDT.DPDT and DPST (double pole) are essentially two switches tied together and actuated simultaneously. One side can be used as simple on/off switches (same as SPDT or SPST) or to switch both negative and positive at the same time. Also wired as reversing (polarity reversing) switches.SPDT with center off means the there is a middle position that is not connected to either output Lighted switches means the light comes on when the load is energized. Refer to photos for proper connections. These will need a ground connection for the light to work.
If you have questions about this product you can call Hein at 541-49O-5O98