Don't be fooled. Wattage is a measure of how much power a UV lamp consumes and NOT how much UV light the bulb produces. The amount of UV light produced by a UV nail lamp depends on many factors, e.g. type and manufacturer of the bulb, number of bulbs, electronics components used, type of reflectors used, placement of the fingers in the light, distance between the bulbs and fingers and many other factors. A properly designed UV gel product is created to work with a specific UV lamp design. I've discussed these issues in my article "7 Secrets to Curing UV Gel Nails", www. DougSchoon.com.
There will always be people who ignore manufacturer's instructions, at their own risk. I have measured the UV output of various UV lamps in the industry and they vary widely, not just because of the bulbs, but the "electronics" that drive the lamp. Different components and combination of components push these bulbs differently to create UV light. There is even a difference between different UV bulb manufacturers.
If you think that you can tell how much a UV light a UV nail lamp produces by looking at it, or counting the bulbs or adding up the wattages, you are just fooling yourself and doing your clients a disservice. Don't second guess the experts that designed the systems for you. Always follow the manufacturer's instructions. If you don't like the UV lamp, don't use the UV gel. It's that simple.
Doug Schoon
Chief Scientific Advisor
Creative Nail Design, Inc.