I decided to try adding navigation anchor light to my PP Blades with a couple (flush mount LED bolt lights - Cool white, Aluminum (1W), 11mm, No Lens Silver) and a couple prewired surfacemount LEDs - Cool white, 5050's from Oznium.com. The bolts were a little small and slid through the blade opening so I added a washer and aluminum backplate. Only drilled one small whole for the light in the back. Turned out to work a lot better than I thought.