k2 light tree - West Cornwall - 2008 I used a mixture of Luxeon K2 LEDs and Luxeon 1 watt LEDs with a DMX colour changing program to temporary light this 20 metre high Monterey Pine in West Cornwall. I used to think that LEDs were best for indoor spaces, architectural accents and shining directly at the viewer. This was the first time using LEDs for an outdoor floodlighting installation and I was really impressed with how much impact the latest high powered LEDs have. The K2s provided the main light from a single RGBW floodlight using 5 red, green, blue, and white K2 LEDs. The fourth channel, white, allows a much more subtle range of colours. The infill light was from 2 RGB floodlights using 15 red, green and blue 1 watt LEDs.