They're probably going to be much brighter than what you're used to, but the pattern will not be anywhere near as good as with halogen bulbs. Those dual sided LEDs will put light in places it shouldn't be. Even if the LEDs are the same distance from the back of the reflector as a halogen filament, you can't replicate the 360 degree output of a filament with a dual sided LED board. IMO it's kind of a shame to put those in a set of Artebs, you're giving up the major advantage of the better halogen reflector and lens design.
You can test this by driving down a road with reflective signs at night. Do it with halogens installed first, then with the LEDs. You'll notice that the reflective finish on the street signs will be bouncing way more light back at you with the LEDs, even if the reflectors are adjusted properly and the beams are focused low on the road.
You can test this by driving down a road with reflective signs at night. Do it with halogens installed first, then with the LEDs. You'll notice that the reflective finish on the street signs will be bouncing way more light back at you with the LEDs, even if the reflectors are adjusted properly and the beams are focused low on the road.
And IF I can get the Headlights off of the truck 
