Approach lighting systems (ALS) provide a critical component of the runway safety systems to allow a pilot to transition from instrument to visual flight during landing. We offer a flexible range of systems which meet all relevant international standards and ensure your lighting needs are met now and in the future.They include threshold lighting, sequenced flashing lights, PAPI lights, approach lights, runway end identifier lights and Illuminated wind cones. Each type of approach lighting serves a somewhat different purpose, depending on the circumstances.Approach lights are white or red in colour, with steady or flashing.