DC12V LED dimmer, rated for 6A. I purchased this on Amazon, but it turns out it won't work with the circuit configuration I had in mind, so I'm selling it. As shown in the photos, the two wires have been crimped with bullet connectors, but they can be cut off if you don't need them and it will still work fine. Accessories include the main unit, instruction manual, front panel, panel mounting screws, and box. The following is from the Amazon product page: Operating Mode: Manual (may not be in Japanese). Current Rating: 6 Amps Operating Voltage: 12 Volts Contact Type: Normally Open Connector Type: Wire Leads Brand: acegoo For 12V DC circuits: Compatible with LED lighting, incandescent lamps, halogen lamps, or anywhere there is a 12-volt DC power supply, rated for 6A. PWM Dimming: Pulse width modulation dimming control, reduces heat, increases energy efficiency, and provides buzz-free, flicker-free dimming. Easy Connection: Clear 4-wire configuration, 2 power input wires, positive and negative, and 2 output wires for lamp positive and negative. Easy Installation: Compact size, can be easily integrated into a custom control panel or installed independently with the front panel (included in the package). Easy to Use: Smoothly adjust the brightness by turning the knob from fully bright to the lowest dim setting, and it clicks off at the end.