
TCP Item Number: 31025850 Lamp code: F25T8/850
B
C
Average Rated Life (hours)
3 hours per start -------------------------- 24,000
TCLP Compliant ----------------------------- Yes
Low Mercury --------------------------------- Yes
Physical Characteristics
Lamp type ----------------------------------- T8
Base type ------------------------------------ Med. BiPin (G13)
Lamp Material ------------------------------- Soda Lime
Phosphor ---------------------------------------- Tri-Phosphor
Lamp Diameter (inches)
Nominal (D) --------------------------------- 1.00
Maximum (D) ------------------------------- 1.10
Minimum (D) -------------------------------- .94
Overall Length (inches)
Nominal (C) --------------------------------- 36.00
Maximum (C) ------------------------------- 35.78
Minimum (C) -------------------------------- 35.67
Face to End of opposing pin (inches)
Maximum (B) ------------------------------- 35.50
Minimum (B) -------------------------------- 35.40
Photometric Characteristics
Initial Lumens -------------------------------- 2225
Mean Lumens (40% of rated life) ----------- 2115
Correlated Color Temperature (Kelvin) ----- 5000
Color Rendering Index (CRI) ---------------- 86
Normal Efficacy (Lumens/Watts) ----------- 89
Electrical Characteristics
Lamp Watts ---------------------------------- 25
Nominal Lamp Volts ------------------------- 100
Nominal Lamp Operating Frequency (Hz) - 50-60 Hz
Min. Starting Temperature (Degrees C) --- 10º
Min. Starting Lamp Voltage at 10˚C ------- 260
Min. Cathode Resistance (Rh/Rc) ---------- 4.25
Max. Cathode Resistance (Rh/Rc) --------- 6.5
Miscellaneous
TCLP Compliant ----------------------------- Yes
Low Mercury --------------------------------- Yes
MONTH
24
STANDARD WARRANTY
F25T8/850 Lamp Specifications
D
Cathode Guarded
Spectral Power Distribution
0.12
0.10
0.08
0.06
0.04
W/ nm per 1000 lm
0.02
Normalized Spectral Power -
0.00
350 400 450 500 550 600 650 700 750
WAVELENGTH (nm)
Lamp Lumen Maintenance
100
90
80
% Initial Light Output
70
10 20 30 40 50 60 70 80 90 100
% Rated Life
Typical Lamp Mortality
100
90
80
70
60
50
40
30
PERCENT SURVIVING
20
10
0
0 20 40 60 80 100 120 140 160 180 200
PERCENT RATED LIFE
TCP is proud to have been awarded
ENERGY STAR
®
Partner of the Year 2013.