Philips 25W T8 Lamps - Manual (Page 4)

*4380 based on operating the lamps 12 hours per day/7 days per week.
**8760 based on operating the lamps 24 hours per day/7 days per week.
*Ballast Factor (BF) Measure of light output from lamp operated by commercial ballast, as compared to a laboratory standard reference ballast.
Energy Advantage Long Life 25W T8 System vs F34T12/EW System
3 LAMP SYSTEM 4 LAMP SYSTEM
Standard Energy Advantage Standard Energy Advantage
F34T12/EW Long Life 25W T8 F34T12/EW Long Life 25W T8
.87 BF* .87 BF* .87 BF* .87 BF*
System Wattage 115 64 144 84
Maintained 2650 x .87 2400 x .87 2650 x .87 2400 x .87
Lumens BF* x .87 LM BF* x .95 LM BF* x .87 LM BF* x .95 LM
x 3 = 6017 x 3 = 5951 x 4 = 8023 x 4 = 7934
Energy Savings 51 WATTS SAVED! 60 WATTS SAVED!
Replace Existing 34W T12 Systems with
Energy Advantage Long Life 25W T8 Systems &
Save Up To 40% in Energy Costs!
Replacing existing F34T12 magnetic systems with Energy
Advantage Long Life 25W T8 lamps on instant start ballasts,
results in an energy savings of up to 60-watts per fixture!
That’s approximately a 40% energy savings.The Energy
Advantage Long Life 25W T8 is ideal for office environments
that are currently overlit with antiquated T12 lamps and need
more energy efficiency without sacrificing light quality. > Save 60-watts per fixture by replacing a 4 lamp
T12 magnetic ballast system with a 4 lamp 25W T8
instant start ballast system
> Improves CRI from 62 to 85
Energy Advantage Long Life 25W T8 Lamps
versus Standard F34T12 Lamps
Dollars Saved Over the Life of
Energy Advantage Long Life 25W T8 System vs Standard F34T12 System
Energy Savings Calculator
15 Watts per Annual Operating Hrs. Annual Operating Hrs. SAVINGS OVER
Lamp Saved (12 hour cycle) (24 hour cycle) LAMP LIFE
kWh Rate 4380* 8760** 30,000 Hours
$0.06 $3.94 $7.88 $27.00
$0.08 $5.26 $10.52 $36.00
$0.10 $6.57 $13.14 $45.00
$0.12 $7.88 $15.76 $54.00
$0.20 $13.14 $26.28 $90.00