I got this sometime ago. Its about RM10.50 for a pair of 4 Blue LEDs. What you do is, peel off the protective backing of the double sided stickers underneath the LEds and stick this to your car. Then you give it 12volts and it would light up.
Unfortunately, the blue LEDs were not that bright enough and secondly, no respectable Ah Beng would use Double sided tapes to stick anything under their Bengmobiles. Just one spalsh of the flood water, a brush with a dog carcass or even a tiny whinny kick from his beloved Ah Lian would dislodge these things.
No, these lights are for other projects which I am now collecting. By the same time next year, you would be able to see the fruits of my (insane) labour.