Frugal and Energy Efficient Living

for example http://www.rapidtables.com/calc/light/watt-to-lumen-calculator.htm

Tungsten bulbs produce 12 - 18 lumens per Watt depending on age so a 100W tungsten produces 1500 lumens, a 60W tungsten is 900 lm and a 40W is 600 lm.

Metal Halide aka quartz halogen produce 75 - 100 lm/W again dependent on age though for most of their life it is about 85 lm/W

Both fluorescent and LEDs produce an average of 60 lm/W but newer LEDs can average much higher about 80 lm/W

Now from this it looks like metal halide is the way to go except they also have a much shorter life than LEDs and fluorescents and during the 10 years we used them we had 3 explode - one nearly causing a fire.