Good lord. The ECE regulations
are a ponderous nightmare...
In a nutshell, the Deltas are legal. The "A" is the approval for the front position "city lamp" function and the HC/R means they met the criteria for Low/High-beam headlights, halogen.
They likely didn't do it with the blue bulbs since the blue bulbs aren't legal in many countries in Europe. Those under-performing "specialty" bulbs are for our ill-informed market.
By these merits, that they're legal at least, they're better than an IPF. I have no first-hand experience with the lights; only their reputation and inferences gleaned from the use of the trendy bulbs and dubious marketing.
I've contacted them and asked for photometry; they've asked for my "credentials".
I'd really like to test them. Not only with a pigtail connector, but with a proper harness.
But I'm done removing my own lights. It took me too long to get the Speakers aimed correctly ---- I finally broke out a series of levels, laser level, clamps, etc. and did a proper job of it. And it was worth it; boy howdy.
Anybody around the Atlanta area with the Deltas installed?