Specification Sheet
9/5/2013
F28T8/835/ES/ECO/IC
Project:
Linear Fluorescent Lamps
T8 Linear Fluorescent Lamp
28 Watt / 85 CRI / 3500K
ENERGY SAVING
Ordering Information
Howard Catalog Number (Ordering Code) F28T8/835/ES/ECO/IC
UPC Code 06991
Description T8 Low Mercury Linear Fluorescent
Package Quantity 25
Physical Characteristics
Base Medium Bipin
Bulb Type T8 (8/8 inch)
ACB
Bulb Description Tubular Fluorescent Lamp
Nominal Length (in) 48
Base face to base face (Amax) (in) 47.22
Base face to end of opposite base pin
(Bmin/Bmax) (in)
End of base pin to end of the opposite pin
end (Cmin/Cmax) (in)
Operating Characteristics
Nominal Wattage 28
Approximate Initial Lumen (lm) 2700
Approximate Mean Lumen (lm) 2540
Average Rated Life (hours) 24000
Color Temperature (K) 3500
Color Rendering Index (CRI) 85
Catalog#:
Approved by:
47.40/47.78
47.67/47.78
1.0
0.8
0.6
0.4
0.2
0.0
Relative Power
400 450 500
Wavelength / nm
550 600 650 700
750
E
This lamp meets
Federal Minimum
Efficiency standards.
Note: Lamps may operate on suitable energy saving 28W ballasts or instant start 32W electronic ballasts with a minimum
starting voltage of 550V rms & anti-striation circuitry. Recommended for use above 60F ambient temperature. Not
recommended to be used on dimming ballasts or inverter operated emergency lighting systems unless equipment is
specically listed for 28 watt lamps. Rated lamp life is 24,000 based on 3 hours per start and 30,000 based on 12 hours
per start.
Specifications subject to change without notice.
Howard Lighting Products | 580 Eastview Drive | Laurel, MS 39443
(toll free) 800.956.3456 | (direct) 601.422.0033 | (fax) 601.422.1652
www.HowardLightingProducts.com