Dual or Single Fimanet Bulb

[seaheifer]

What is the difference and which to you recomend?

[John Bates]

For what application?

On the GS500, dual filament bulbs are used in the tail/brake light sockets.

The turn signal lights use single filament bulbs.

[hmmmnz]

  the difference is they have 2 filiment inside a buld, eg dip and full beam inside the one bulb. so the 3 terminals on the bulb 1 earth/ground 1 for the highbeam and 1 for the dipped headlight.
the gs has dual filiment for the headlight and tail lights the rest are singles

[seaheifer]

That is all I needed to know, thanks!