Sgt.Sly
Well-Known Member
This may be some helpful info. CFL Efficency: CFL's higher than a 55W start to loose their Lumen per Watt RATIO SIGNIFICENTLY. Here's a modified chart from another thread. I added some extra calculations for your refrence.
CFL Lumens/Watt Ratio
Lum/1Watt
150w - 52.667 - 7900 Lumen
105w - 65.714 - 6900 Lumen
85w - 58.823 - 5000 Lumen
65w - 52.308 - 3400 Lumen
55w - 65.454 - 3600 Lumen
42w - 66.667 - 2800 Lumen
40w - 66.25 - 2650 Lumen
32w - 65.625 - 2100 Lumen
30w - 66.667 - 2000 Lumen
27w - 64.815 - 1750 Lumen
23w - 69.565 - 1600 Lumen **** These are VERY Efficent****
Say you had 5 of these 30 watt bulbs:
That would still be 150 watts, but these put out 2000 lumens each, so that would be 10,000 lumens for 150w instead of 7900 for a single 150w.
Also the advantage of better coverage and direct penetration from the bulb. Rather than a reflector. With every extra inch of light travel from a cfl, the more dramatically the penetration effectiveness is decreased. The short of it, smaller more efficent bulbs, and more of them does give you an advantage.
CFL Lumens/Watt Ratio
Lum/1Watt
150w - 52.667 - 7900 Lumen
105w - 65.714 - 6900 Lumen
85w - 58.823 - 5000 Lumen
65w - 52.308 - 3400 Lumen
55w - 65.454 - 3600 Lumen
42w - 66.667 - 2800 Lumen
40w - 66.25 - 2650 Lumen
32w - 65.625 - 2100 Lumen
30w - 66.667 - 2000 Lumen
27w - 64.815 - 1750 Lumen
23w - 69.565 - 1600 Lumen **** These are VERY Efficent****
Say you had 5 of these 30 watt bulbs:
That would still be 150 watts, but these put out 2000 lumens each, so that would be 10,000 lumens for 150w instead of 7900 for a single 150w.
Also the advantage of better coverage and direct penetration from the bulb. Rather than a reflector. With every extra inch of light travel from a cfl, the more dramatically the penetration effectiveness is decreased. The short of it, smaller more efficent bulbs, and more of them does give you an advantage.