Quote Originally Posted by the image reaper
look here: HID-Lights - High Pressure Sodium Light Bulbs - 1000-Bulbs - The Light Bulb Superstore
click on the details for each lamp you are considering ... look for the 'lumens' output, that's what you are wanting ... notice the 'initial lumens' is higher, the lamp quickly drops its output after a short time ... :smokin:
based on the link you showed me with those bulb to chose from i would go with the dual 150's sound right?