GREEN 4 point 74 style LED replacement bulb No wiring required AT ALL. The leds plug into the same stock socket in the instrument cluster. LED bulbs, if used inside the instrument cluster come with a full lifetime burnout warranty. LED bulbs do not produce any heat and run cool to the touch which means no more melting plastic dash pieces. Night time lighting is improved greatly and even more with our white gauges installed; red is not as bright as the others and only work for some instrument clusters. These high power LED bulbs will work in the instrument cluster and for certain sidemarkers (High power leds are recommended, using in sidemarkers voids warranty).