Here's the latest brightness adjustable Lux III flashlihgt:
And here's a short demonstration video:
http://www.acad.polyu.edu.hk/~02463153d/Kiu_folder/16%20output%20levels%20light.wmv
And here's a short demonstration video:
http://www.acad.polyu.edu.hk/~02463153d/Kiu_folder/16%20output%20levels%20light.wmv