Originally Posted by slvoid
Ok, I realized that my light has a more efficient reflector and apparently, light & motion uses custom halogen bulbs that get 30 lumens/watt. Which means that the 16 watt beam that I normally run gets about 480 lumens, and the 11 watt beam gets 330 lumens, which explains why it gets almost as much light as a HID. And on both beams, I'm running around 800 lumens.
Anyway I updated the chart with slightly more reasonable speeds and added a few things.
I'm not sure this is clear, so I just wanted to point out that the "11" and "16" in MR-11 and MR-16 lamps is not referring to wattage, it's referring to the diameter of the reflector. MR-11 lamps are 11/8" in diameter and MR-16 Lamps are 16/8" in diameter.
You can get almost any wattage of MR-16 Lamp from 5w/12v to 250w/240v.
I'm pretty sure MR stands for metallic reflector, but nowadays everyone makes the reflectors out of dichro glass because it's more efficient.
bk