Gaugemaster GM385 Vehicle Lighting Kit.
This vehicle lighting kit gives you the opportunity to enhance any diecast vehicle.
The kit contains everything you need to fit one vehicle, including a processor unit, 1 resistor, 2 red LEDs, 2 white LEDs, 1 battery box, a 1.2mm drill bit and a 3v battery – CR2032.
The battery box measures 30mm (length) by 22mm (width) and the processor unit measures 24mm (length) by 10mm (width).