Q-Tran is committed to providing innovative LED products and the best power supplies for exacting applications. Founded in 19 ... 93 after a need in the industry for a power supply specifically designed for low voltage lighting, has grown into the company it is today, which offers over 800 variations of AC and DC power supplies. We are proud to say that Q-Tran has more than 10 utility patents, 9 design patents, 13 provisional patents, 7 international patent applications, and our brilliant staff that made it all possible. read more