[EFFECTIVE UNIVERSAL DESIGN: Works with both 36-volt and 48-volt systems to bring total pack voltage down to 12 volts; industry-leading design features BOTH constant and switched 12-volt outputs IMPROVE BATTERY LIFE: Connects entire battery pack instead of just one battery, which extends the life of the battery pack; wiring pigtail included POWERS ALL YOUR ACCESSORIES: 30 amp output allows multiple accessories to be connected and powered at the same time, and works with 12-volt accessories such as headlights, taillights, radios, and fans HIGH-QUALITY COMPONENTS: Powder-coated aluminum housing with heat-dissipating design reduces damaging heat generation DIMENSIONS: Measures 7" L x 4" W DC voltage reducer/converter to reduce your 48-volt or 36-volt electric cart to 12 volts to run all of your accessories. Connects to entire battery pack instead of just one or two batteries, which improves the life of the batteries.