Who in Tampa area uses T 5 only (SPS)
- Thread starter reefrubble
- Start date
mattliu
Member
T5:
21% radiant energy efficiency
54 watt bulb X 5 = 270 watts
5 bulbs X $20 (low estimate) = $100
.21 X 270 W / $ 100 = .567 watts of radiant energy / $ 1 spent on a T5 bulb
Metal Halide:
24 % radiant energy efficiency
250 watt bulb X 1 = 250 watts
1 bulb X $101.69(high estimate;maybe if you run aquaconnect) = $ 101.69(FAOIS)
.24 X 250 W / $ 101.69 =.590 watts radiant energy / $ 1 spent on a metal halide bulb
About 24% of the energy used by metal halide lamps produces light (65-115 lm/W[1]), making them generally more efficient than fluorescent lamps, and substantially more efficient than incandescent bulbs.
http://en.wikipedia.org/wiki/Metal_halide_lamp
A typical CFL is in the range of 17 to 21% efficient at converting electric power to radiant power.[19] Because the eye's sensitivity changes with the wavelength, the output of lamps is commonly measured in lumens, a measure that accounts for the effect of the source's spectrum on the eye. The luminous efficacy of CFL sources is typically 60 to 72 lumens per watt, versus 8 to 17 lm/W for incandescent lamps.[20]
http://en.wikipedia.org/wiki/Compact_fluorescent_lamp
http://www.lrc.rpi.edu/programs/nlpip/lightingAnswers/lat5/pc1a.asp
21% radiant energy efficiency
54 watt bulb X 5 = 270 watts
5 bulbs X $20 (low estimate) = $100
.21 X 270 W / $ 100 = .567 watts of radiant energy / $ 1 spent on a T5 bulb
Metal Halide:
24 % radiant energy efficiency
250 watt bulb X 1 = 250 watts
1 bulb X $101.69(high estimate;maybe if you run aquaconnect) = $ 101.69(FAOIS)
.24 X 250 W / $ 101.69 =.590 watts radiant energy / $ 1 spent on a metal halide bulb
About 24% of the energy used by metal halide lamps produces light (65-115 lm/W[1]), making them generally more efficient than fluorescent lamps, and substantially more efficient than incandescent bulbs.
http://en.wikipedia.org/wiki/Metal_halide_lamp
A typical CFL is in the range of 17 to 21% efficient at converting electric power to radiant power.[19] Because the eye's sensitivity changes with the wavelength, the output of lamps is commonly measured in lumens, a measure that accounts for the effect of the source's spectrum on the eye. The luminous efficacy of CFL sources is typically 60 to 72 lumens per watt, versus 8 to 17 lm/W for incandescent lamps.[20]
http://en.wikipedia.org/wiki/Compact_fluorescent_lamp
http://www.lrc.rpi.edu/programs/nlpip/lightingAnswers/lat5/pc1a.asp
Last edited:
reeferfriendly
New member
No offense taken . I know my typing is horrible to say the least . I am just sooo slow at typing if i took the time to look for all those keys i would be here all week
