The Lunchbox Adapter allows the connection of several new speedos on the old harness connector what was connected to the old BMW speedo in older K models. The adapter makes the conversion of the old harness signals to a modern speedo easy. 10 output cables provide all necessary signals. The neutral signal is now compatible with modern speedos and the virtual load for the alternator is built-in. Fuel reserve signal for upto 1985 models is integrated. - Dimensions: 51 mm length x 51 mm wide x 15 mm height w/o connectors - Body material: Shock resistant ABS plastic; waterproof poured raisin - Case Color: Black - Connections: 0;14 qmm; 20 cm to the new speedo; 2 x 12 pin to original harness - Maximum ambient temperature: 80 degree Celsius - Input voltage range: 7 - 18 Volt