I just did this conversion yesterday (Hella H1/H4 with standard 55 & 55/60 watt lamps +2 10A fuses) and am impressed with both the light output and beam pattern. I have to adjust the lights downward a little, but that's it. For the money and ease of installation, I cannot imagine why anyone would bother fooling with elipsoids, smileys, or any other conversion. Working at a relaxed pace, it took me a grand total of 45 minutes and required one screwdriver. Btw, I purchased the bits (genuine Hella kit, exactly the same part #'s as retail suppliers) on EvilBay for quite a bit less than the catalog price. Lamps, bulbs, wiring bits, and rubber pieces were a grand total of $173.22 including shipping and NYS sales tax.