does any one know what the dash lights are called like t3/t4/t5 etc looking to change my green lights in my mk3 gti to blue/white or red some different from vw green

there's a guy on golfgti.co.uk that will do all this for you, whatever colour you like. He does clocks, window switches, sunroof buttons, hazards.....the lot!......he solders in LED's. the only one he struggles with is the heater controls as it uses a green plastic filter rather than bulbs. he did his using new style VW colours (blue and red).........looked awesome!......i think he needs your switches etc for exchange

how much??