PWI LED cabin lighting systems for the King Air 90, 100, 200, B200 are STC, EASA, ANAC and AFAC approved. Long life, easy installation and no maintenance. LEDs replace all of the fluorescent cabin lights located above the windows. LED lighting products have a 3 year warranty and ship with the STC documents at no extra cost. PWI has been in business for more than 50 years.