This state of charge meter is MADE IN THE USA to ensure high quality and performance. Meter fits into a 52 mm hole, which is the standard sized hole in most golf cart dashes. Meter has two blade connectors on rear to easily swap into your existing wiring harness. Meter comes with nuts, lock washers, and pressure clamp on rear to tightly fit into mounting hole. Meter does not draw power while in rest mode as digital or illuminated meters do. Please check with golf cart manufacturer for installation instructions specific to your cart. For an entire installation kit, please search "Stone River Golf Cart Meter Kit" to find listing for entire kits. Red on the left - time to charge Green – Good but will need charging soon White – Fully charged Red on the right – over charged