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Philips PLUS T8 U-Bent Lamps featuring ALTO
®
Lamp Technology
Ordering, Electrical and Technical Data
Color Nom. RatedAverage Life (Hrs.)
1
Approx.
Product Ordering Pack. Temp. Length 12-hr on 12-hr on Initial Design Lumen
Number Code Watts Qty. (Kelvin) (In.) Ins.Start
2
Prog.Start
2
Lumens
3
Lumens
4
CRI Maint.
21977-4 FB32T8/TL830/PLUS/6/ALTO 32 20 3000 22
7
⁄16 30,000 36,000 2800 2535 85 95%
21978-2 FB32T8/TL835/PLUS/6/ALTO 32 20 3500 22
7
⁄16 30,000 36,000 2800 2535 85 95%
21983-2 FB32T8/TL841/PLUS/6/ALTO 32 20 4100 22
7
⁄16 30,000 36,000 2800 2535 85 95%
21987-3 FB32T8/TL850/PLUS/6/ALTO 32 20 5000 22
7
⁄16 30,000 36,000 2750 2500 84 95%
1) Rated average life is thelength of operation (in hours) at which point an average of 50% ofa large sample of lampswill still be operational and 50% will not.
2) Average life under engineering datawith lamps turned off and restarted once every 12 operating hours. Lamp life is appreciably longer if lamps are started less frequently.
3) Approximate initial lumens.The lamp lumen output is basedupon lamp performance after 100 hours of operating life,when the output is measuredduring operation on a reference ballast
under standard laboratory conditions.For expected lamp lumen output,commercial ballast manufacturers can advise the appropriate ballast factor for each of theirballasts when they are
informed of the designated lamp.The ballast factor is a multiplier applied to thedesignated lamp lumen output.
4) Design lumens are the approximate lamp lumen output at 40% ofthe lamp’s rated average life.This output is based upon measurements obtained during lamp operation on a reference
ballast under standard laboratoryconditions.
B
ASED ON 3 HOURS PER START
5
Instant Start Ballast Programmed Start Ballast
24,000
30,000
30,000
36,000
BASED ON 12 HOURS PER START
2
0 10,000 20,000 30,000 40,000
RatedAverage Life in Hours
Rated Average Life
Philips PLUST8 U-Bent Lamps
5) 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 iflamps are started less frequently.
2) See above forfootnote
© 2008 Philips Lighting Company.All rights reserved.
Printed in USA 4/08
P-5937
www.philips.com
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1-800-555-0050
A Divisionof PhilipsElectronics NorthAmerica Corporation
Philips Lighting
281 Hillmount Road
Markham,Ontario
Canada L6C 2S3
1-800-555-0050
A Divisionof PhilipsElectronics Ltd.