I made a video to demonstrate the difference between a 100 Watt GE4509 with a 120,000 candela beam center intensity vs. a 30 Watt Sunspot 36 (narrow lens) with a 30,000 candela beam center intensity to show the difference between a very narrow beam incandescent landing light, and a slightly wider beam LED landing light. This demonstrates that a very narrow beam is not necessarily better when two lights produce roughly the same total lumens of light. The Sunspot 36 is more like a GE4594 in terms of its beam angle and intensity.

The perspective shown in this video is meant to represent the sight picture seen by a pilot on final just before touchdown (6 to 10 feet above the runway).

http://www.youtube.com/watch?v=FE9qURJJrE4

Dean Wilkinson
CTO, AeroLEDs LLC