Correct, BMW R1200GS Adventure. The S4's can also double up as DRL's at a much reduced output.
I had been interested, mildly, in the D3 as a driving light, as a new competitor to the DD SS3 pod lamps (a pair of which I already own and use). Like the morimoto "4banger," it has 3 emitters but each optic appear to be larger in size than the ones employed by DD in the SS1/2/3/5 lineup, which could lead to similar performance. But they appear to not be ready to ship them out yet (happy to take your money, though)
Are there any particular numbers an end consumer/user like me should look out for? Obviously a lamp or bulb can be bad regardless of which number is after the "E" mark because the regulations themselves allow too much variance, but assuming the type approval is legit, is a lamp or bulb with a say, "E1" mark more likely to have been vetted than a lamp or bulb with an "E11" or "E13" or "E24" mark?
This isn't how it works...like, not at all. In the first place, Bosch phased out of the vehicle lighting business 25 years ago when they formed Automotive Lighting cooperatively with Magneti Marelli, then eventually sold off their interest to Marelli. Secondly, Bosch (and AL) and Hella and all the rest of the first-line names don't necessarily guarantee a good lamp. All those companies have made stinkers. Granted, most of their stuff is good, but not all of it. Also, there is no hard link between the E-number and the nationality of where the part was made or what company made it. Anyone is free to submit their component or vehicle to any participating country's TAA, and if an approval is granted, that vehicle or component becomes legal for sale and use in any/every participating country.Simple answer is to probably buy from know manufacturers to avoid fake units. The E1 code refers to Germany so the likes of Hella or Bosch etc will be a safe bet.