Since 1975, Princeton tec has developed personal lighting products for the professional and industrial workplace. This 33-year history of meeting challenges continues to drive the growth and development of Princeton tec and its products. every Princeton tec light is a sophisticated and well-engineered piece of equipment – we design our products with the best technology available. our powerful ul-approved lights are as tough as they come. accept nothing less than hands-free ease, versatility and durability.