105
100
95
90
85
80
75
70
65
60
Relativ
e
Light
Output
(%)
Ambient Temperature ˚C
0˚C
10˚C
20˚C
30˚C
40˚C
50˚C
60˚C
70˚C
80˚C
32˚F
50˚F
68˚F
86˚F
104˚F
122˚F
140˚F
158˚F
176˚F
Performance
(Relative Light Output vs.Temperature)
Philips T5VHO Extreme Temperature Lamps vs. Standard F54T5 Lamps
Philips T5 VHO Extreme Temperature lamps featuring ALTO
®
Lamp Technology
Lamp Ordering, Electrical and Technical Data
Color
Nom.
Rated Avg. Life (Hrs.)
1
Approx.
Product
Ordering
Pack.
Temp.
Length
3 Hr.
12 Hr.
Initial
Design
Lumen
Number
Code
Watts
Qty.
(Kelvin)
(In.)
Start
2
Start
3
Lumens
4
Lumens
5
CRI
Maint.
21771-1
F95T5/835/VHO/A/ALTO
95
40
3500
46
25,000
35,000
7200
6900
85
90%
21772-3
F95T5/841/VHO/A/ALTO
95
40
4100
46
25,000
35,000
7200
6900
85
90%
1) Rated average life is the length of operation (in hours) at which point an average of 50% of a large sample of lamps will still be operational and 50% will not.
2) Average life under specified test conditions with lamps turned off and restarted no more frequently than once every 3 operating hours. Lamp life is appreciably longer if lamps are started less frequently.
3) Average life under engineering data with lamps turned off and restarted once every 12 operating hours on a programmed start ballast. Lamp life is appreciably longer if lamps are started less frequently.
4) Approximate initial lumens.The lamp lumen output is based upon lamp performance after 100 hours of operating life, when the output is measured during operation on a high frequency reference ballast under
standard laboratory conditions. For expected lamp lumen output, commercial ballast manufacturers can advise the appropriate ballast factor for each of their ballasts when they are informed of the designated lamp.
The ballast factor is a multiplier applied to the designated lamp lumen output.
5) Design lumens are the approximate lamp lumen output at 40% of the lamp’s rated average life.This output is based upon measurements obtained during lamp operation on a reference ballast under
standard laboratory conditions.
This lamp is better for the environment because of its reduced mercury content. All Philips ALTO
®
lamps give you end-of-life options which can simplify and reduce your lamp disposal costs depending on your state and
local regulations.
Note:T5 VHO lamps have new miniature flat pin bases which require new GX5 sockets.
Above specifications subject to change without notice.
Rated Average Life in Hours
Rated Average Life in Hours
BASED ON 3 HOURS PER START
2
25,000
BASED ON 12 HOURS PER START
3
35,000
Programmed Start Ballast
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Rated Average Life
1
Philips T5 VHO Extreme Temperature Lamps
90% Lumen Maintenance
Philips T5 VHO Extreme Temperature Lamps
Footnotes from front page:
* 90% lumen maintenance at 17,500 hours for the T5 VHO lamp compared to 65% lumen maintenance at 8000 hours for the MH400/U lamp.
‡ 458 system watts (MH400/U) – 418 system watts (T5 VHO) = 40 system watts.
◊
35,000 rated average life (T5 VHO at 12 hours per start) compared to 20,000 rated average life (MH400/U at 13 hours per start)
** For example, with 7200 initial lumens, you only need (4) 95W T5 VHO lamps instead of (6) T5 54W HO lamps when replacing a standard 400W HID System.
** For example, with 7500 initial lumens, you only need (4)
95W T5 VHO lamps instead of (6) T5 54W HO lamps when replacing a standard 400W HID System.
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
100%
98%
96%
94%
92%
90%
88%
100%
98%
96%
94%
92%
90%
88%
Lamp Operating Hours
Lamp Operating Hours
Light
Output
(%)
Light
Output
(%)
New P-5904-A T5 VHO Prod Bulletin.qxd:Layout 1
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