This LLB319 6 volt bulb may have similarities to the familiar 21w indicator bulb LLB317 (6v), or even the 21/5 brake/tail LLB384(6v), but it is DIFFERENT.
It is a "non-standard" one used by some 6 volt vintage cars (that i have not yet worked out).
This LLB319 is a single-filament bulb, with the same side-pin setup and base-size as the 21 watt normal one, but it does not use the side as part of the circuit. There are TWO contacts underneath, the filament IN and the filament OUT. The casing of the bulb is not part of the electrical circuit .
To add to the confusion it is often called a 21watt, but it is in fact 18watt (not much difference but i mention it simply for naming-details rather than any importance in the power rating.).
As is often the case on the net, incorrect information is perpetuated... therefore I offer the following only with the proviso that it looks suspiciously like other people copying other people copying more people etc etc etc. It could be some reversing application, possibly a fog light... I do not know... or it could be some triumph idea... or even a motorbike application .
Also available separately here in my shop are other 6 volt globes.... I suggest using the shop categories to find items as it neatly orders them. see below in purple.
The quantity is ordered by changing the number in the small quantity box, and postage will combine automatically in the same item.
To look for items in my shop, the easiest way is to save any one of MY 1400 items in your watchlist... Then, whenever you want to peruse my 1400 items... simply click on the hyperlink called “visit store” at the top right of this item. That will take you to a page with my 35 store categories... which will allow you to narrow down what you’re after.
Plodding through the Ebay mire of the general search box... or the “see other items” hyperlink is simply the way to insanity.
If you’re using Ebay’s useless mobile app, I’m sorry... I have no idea how you will find them… this app is a real shocker/compromise in quality and half the stuff is missing. Go to your PC is my advice.
SHOP-category examples “ALTERNATORS” or "BRAKE" or “badges” or "TRAFFICATOR parts" or "LIGHTS" or "AXLES" or "COOLING" or “SWITCHES” etc etc