You can attain greater light output with the 55W. However, I have the 55W and I DO NOT suggest it. It is too bright, it literally masks my high beams. There is a reason lows = lows and that HID kits are technically ILLEGAL!. But, a 4300-8000k 35W HID will be brighter than your stock halogens (8000k isnt great) by a good bit.

I think Morimotos are AWESOME and I love them on the car 604. The price does reflect the quality in my opinion.

The only reason i use VVME instead of these is that the HID market is a risky one and I know that with VVME ill probably get two years (1yr warranty btw) out of the digital kits. At 55 bucks a pair I wont cry too much after 2 years or so... Plus I like switching up colors!