[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[APD] small lamp efficiencies
> What is the most efficient lamp & ballast combo around 15-20 watts?
> Are the compact fluorescent lamps more efficient at this size?
The best rating I found under 20 watts is for F17T8/841 with 82
lumens/watt. Compact fluorescent globes ranged from 50-60 lumens/watt,
CF spiral lamps ranged from 63-69 lumens/watt, U shaped CF lamps ranged
from 50-69 lumens/watt.
The CF lamps give comparable performance to T5 but are less efficient
than T8s. The T8s had double the life expectancy of the CF lamps.
I didn't find any data on ballast efficiencies yet.
The following website has excellent data on lamps & ballasts of several
types:
<http://lightbulbsdirect.com/>
Here is some useful data:
Fluorescent T-5 Linear Product Reference Table
Bulb Type: T-5, Base: Mini Bi Pin
Watts Description Length (in) Approx. Hours
Initial Lumens CRI Kelvin Temp. Lumens/watt
4 F4T5/WW 6 6000 140 55 3500 35
4 F4T5/CW 6 6000 135 60 4100 33.75
4 F4T5/D 6 6000 115 75 6500 28.75
6 F6T5/WW 9 7500 270 55 3500 45
6 F6T5/CW 9 7500 295 60 4100 49.2
6 F6T5/D 9 7500 230 75 6500 38
8 F8T5/WW 12 7500 400 55 3500 50
8 F8T5/CW 12 7500 400 60 4100 50
8 F8T5/D 12 7500 330 75 6500 41
13 F13T5/WW 21 7500 870 60 3000 67
13 F13T5/CW 21 7500 850 60 4100 65
Fluorescent T-8 Linear Product Reference Table
Bulb Type: T-8, Base: Medium Bi Pin
Watts Description Length (in) Approx. Hours
Initial Lumens CRI Kelvin Temp. Lumens/watt
10 F10T8/CW 13 7500 480 60 4100 48
13 F13T8/CW 12 7500 565 60 4100 43.5
14 F14T8/CW 15 7500 685 60 4100 49
14 F14T8/D 15 7500 645 75 6500 46
15 F15T8/WW 18 7500 800 60 3500 53
15 F15T8/CW 18 7500 825 52 4100 55
15 F15T8/D 18 7500 700 75 6500 46.7
30 F30T8/CW 36 7500 2200 62 4100 73.3
30 F30T8/D 36 7500 2200 79 6500 73.3
Fluorescent T-8 Linear Octron Product Reference Table
Bulb Type: T-8, Base: Med Bi Pin
Watts Description Length (in) Approx. Hours
Initial Lumens CRI Kelvin Temp. Lumens/watt
17 F17T8/730 24 20000 1325 75 3000 78
17 F17T8/735 24 20000 1325 75 3500 78
17 F17T8/741 24 20000 1325 75 4100 78
17 F17T8/830 24 20000 1400 75 3000 82
17 F17T8/835 24 20000 1400 75 3500 82
17 F17T8/841 24 20000 1400 75 4100 82
25 F25T8/730 36 20000 2125 75 3000 85
25 F25T8/735 36 20000 2125 75 3500 85
25 F25T8/741 36 20000 2125 75 4100 85
25 F25T8/830 36 20000 2125 85 3000 85
25 F25T8/835 36 20000 2125 85 3500 85
25 F25T8/841 36 20000 2125 85 4100 85
32 F32T8/730 48 20000 2600 75 3000 81
32 F32T8/735 48 20000 2600 75 3500 81
32 F32T8/741 48 20000 2600 75 4100 81
32 F32T8/750 48 20000 2600 75 5000 81
32 F32T8/830 48 24000 3050 85 3000 95
32 F32T8/835 48 24000 3050 85 3500 95
32 F32T8/841 48 24000 3050 85 4100 95
32 F32T8/850 48 24000 3050 85 5000 95
Fluorescent T-8 Linear Appliance Product Reference Table
Bulb Type: T-8, Base: Med Bi Pin
Manufacturer
Phillips GE Osram/Sylvania Watts Length (in)
Approx. Hours Initial Lumens CRI Kelvin Temp. Lumens/watt
F15T8/CW/24 F24"T8/CW4 F18T8/CW/K/24 15 24
7500 1175 62 4100 78
F16T8/CW/26 F26"T8/CW/4 F18T8/CW/K/26 16 26
7500 1275 62 4100 80
F17T8/CW/28 F28"T8/CW/4 F18T8/CW/K/28 17 28
7500 1350 62 4100 79
F18T8/CW/30 F30"T8/CW/4 F18T8/CW/K/30 18 30
7500 1400 62 4100 78
Steve P in Vancouver, middle of the night
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants