Just throwing this out from my experience. I have the desk top folding Daylight light and it serves my needs. I would like something a little better but, I can get by with the Daylight. The 13w bulb is replaceable. I have used it for over a year now and it has never failed. I would not recommed the "spot light" type of light for tying because there will be too many times, while tying, that your hand will be between the light and the "spot" and you will not be able to see what you are doing. You need something that "floods" the tying area. I have also tried the lights that mount on the vise stem and I always seemed to be bumping into it while tying. It just seemed to always be in my way. Just my thoughts based on having already purchased 4 different lights trying to find that "perfect" tying light!
Warren
Fly fishing and fly tying are two things that I do, and when I am doing them, they are the only 2 things I think about. They clear my mind.