The article never says the new bulb operates at 40 watts. It says ‘less than 60 watts’. Still neat they can do it, but what you are saying was not said in the article.
I would also hope they do some testing on these bulbs to determine lifetime operating ranges for it. They just altered the filament structure blasting it with a high energy laser - hopefully it doesn’t shorten the life of the bulb, or weaken the filament to where it breaks to easily.
Quite correct. I misplaced the reference. Still, after only a single pulse, the drop was 40 W for a brighter bulb! No, it’s no panecia, like what does the lasing do to bulb life, but the amount of energy used to create the effect, compared to the cost of a CFB and it’s hazardous materials, is so trivial as to not even make it into background noise.
Can you imagine what can be accomplished with the entire filament treated this way? And the process can be added onto the end of any existing line!