Mine arrived yesterday and I spent some time figuring them out/installing and documented what I found... they come with no instructions. I bought the smoke version as shown in the OP. They're not very dark at all, but a lot less shiny/silver than the corner lights that come with them. I just kept my original corner lights because I thought they matched better. If you do replace the corner lights, there is no wiring required. The original bulb holders fit right in place (better than the replacements IMO).
BTW, make sure to get the LHD versions, not the RHD versions linked to in the OP!
First off, they are way brighter than the originals, and a lot "whiter." The headlight lenses are actually glass as advertised.... kind of surprising given the price and the trend to poly lenses these days. Here are some pics of the install after doing only the driver's side for comparison (I didn't get around to aiming them yet).
The LED ring light I connected to the lower marker light.
Low Beams
High Beams
I cut the plug off of the old headlight and used it to replace the new one (solder and heat shrink). These are the color matches I found.
I bundled all the excess wire and secured it to the mounting bracket behind the headlight.
To connect the LED halo to the lower marker light I pulled the two spade terminals from the plug, soldered the red and black wires to them, and reinserted. I left the white wire disconnected because I couldn't see what it was for.
Update: If you do want daytime running lights connect the white wire to the lower marker light instead, and connect the red wire to an ignition switched power source. Wired that way the LED halo will be on bright whenever the ignition is on, and it will dim when the other lights are on.
Plug everything back in, reinstall the lights, and repeat on the other side. Don't forget to move the two plastic square nuts from the old headlight over to the new ones before installing (the ones that clip into the square holes and are for securing the trim).
TBH, I kind of prefer the look of the original 4 light headlights; but the dimness and poor RHD pattern was something I just didn't want to live with any longer than necessary.
Update 2: After a drive in the rain one of my LED halos went out right when I need to get the van inspected... My first fear was I got bit by a (relatively) cheap product. My second thought was maybe one of my solder connections was weak/failed or the plug came apart.
After a bit of fussing and redoing the solder connections just incase I finally opened up the LED control module, it just snaps open easily and has no sealing of any kind... it had water in it causing an electrical short. Luckily nothing fried. So I dried it out, packed it with dielectric silicon grease (actually wasn't sold as dielectric and therefore a lot cheaper), and then sealed it with shrink tubing. Caulk and tape would work as well but you would need to let the caulk fully cure before applying power (let it dry out). I also used the dielectric grease on all of the connecters when putting everything back together.