Buck Converter: Input Voltage: DC 18V-20V; Output Voltage: DC 12V; Output Current: Max 20A; Max Output Power 240W Compatibility: Perfectly compatible with for 18V lithium battery, suitable for 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815, etc. Our battery adapter connector is well designed, fits your battery tightly, easy to install and remove Better Safety: The voltage regulator has built-in smart chip, with multiple smart protections of overcurrent, overvoltage, overload, low load, short circuit, overheating, protect your device from overpower damage. The battery adapter also adds a fuse holder and 30A fuse to that you can use it safely Easy to Use: We combine the battery adapter and voltage converter with 2 heat- wires and fuse holder to easier to use, just install the battery to the battery adapter and connect the voltage converter to your device. (Note: Batteries not included) Widely Applicable: This step-down converter is suitable for various 12v devices, perfect for upgrading power tools, riding toys, golf carts, cars trucks, speakers, surveillance equipment, led light strips, work lights or robot DIY, etc. Color: As shown Material: plastic Package Contents: 2 x battery adapters 2 x voltage reducers 2 x terminals 6 x fuses 6 x screws and expansion tubes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.