Ron Lenk is a consulting Engineer, Inventor and Expert Witness. Working in a variety of fields, Ron Lenk has decades of experience and three dozen issued patents in his name. Ron Lenk was co-founder of Switch Light, as featured on the front cover of Wired Magazine, and is author of two best-selling books, Practical Design of Power Supplies and Practical Lighting Design with LEDs, now in its Second Edition and translated to Chinese.