L4 is worth the money. Its a 5W Luxeon Star running 60 regulated lumens for 65 min, and then many hours after that running dimmer. It puts out more usable light than a E2e or 6P because of its flood and white light. The LED life is about 1000 hours. Also comes with Z57 clickie tailcap. Do a search in the LED forum and you'll find hundreds of posts about the L4, along with specs and pictures.