This DIY is for car with dashboard lightning using T8 tungsten bulbs which I think most cars are using except those Optitron meter...

2 days back 1 of my bulb for the dashboard meter burnt out so I went to get a T8 bulb and it cost about MYR3/piece. The price is not expensive but then I think I can make a replacement bulb of my own with less than 3 bucks...so I went and ransack my drawer to look for some white LEDs and get some resistor to replace most of my dashboard bulb into LED because...