Duckworks now also has an LED landing light solution for those that want to change to something other than HID or the original halogen lights. The first LED Duckworks started selling was only 9W but was already better as a landing light than the original 55W halogen, and is currently RF silent.
The latest LED Duckworks has is a 22W LED that was completely designed and built in the USA. It is much more efficient than the round 9W, and also produces much more light volume overall. It is very similiar to some of the current HID lights in total light power and has a nice focused pinpoint light pattern that can push the light out a long way for when you are coming in on final. It does require some trimming of the Duckworks light mounting plates, but Duckworks will do it for you on a CNC machine if you call and talk to Richard. Otherwise they send out a template with the lights so you can trim your own.
The 55W Halogen lights are a very limited light compared to what is readily available in today's market. If you are still running it, there are much better lights out there.
ALSO, if you are running the original rectangular light, you should by all means take the glass lens off the front of the light itself. It spreads the light in a wide patter and diffuses it. There is no need for that in a landing light when you are trying to push the light out a long distance.