TECHNICAL INFORMATION

ENERGY SAVINGS CALCULATION

Watts (difference) x hours on per day x days on per year x .001 x utility rate ($/KWH) = $$ saved per year.

Example (75wt - 13 Wt) x 12 hrs/day x 365 days/yr x .001 KWH x $.10/KWH = $27.15 savings per fixture per year.

GENERAL INFORMATION

Incandescent equivalents are compared with A19 and / or A21 medium base inside frost lamps for wattages up to 150 watts, PS-30 or PS-35 inside frost for 300 and 500 watts, PS-52 inside frost for 750 watt.

AVERAGE LAMP LIFE

Rated average lamp life for incandescent is 750-1000 hours.

Average life for Fluorescent lamps is based upon a minimum 3 hours per start on ballast which meet ANSI Standards for that lamp. Average lamp life for High Pressure Sodium and Metal Halide is based upon minimum 10 hours per burn cycle. Burning cycles shorter than 10 hours per start, the median life will be shortened.

5 hrs/start - approx 75% life

2-1/2 hrs/start - approx 56% life

1-1/4 hrs/start - approx 42% life

STARTING CHARACTERISTICS

Metal Halide and HPS lamps - Full light output does not occur immediately when power is applied to cold lamps. There is a time delay of 2 to 4 minutes before the lamps reach 90% of their full light output.

Fluorescent lamps - Full light output does not occur when the power is applied to cold lamps. Dependent upon ambient temperature, a time delay of 2 to 4 minutes may occur before the lamps reach maximum light output.

RESTARTING CHARACTERISTICS

Metal Halide and HPS lamps - When there is a power interruption of 1/2 cycle or more, HID lamps will extinguish and will not immediately restart when the power is applied. Restarting is dependent on the ballast and starter and may take several minutes before it can start and full light output is reached.

Fluorescent lamps - when power is interrupted, fluorescent lamps will extinguish themselves. Dependent upon ambient temperature and type of ballast driving the fluorescent lamp, restrike time will vary. In most cases only a few seconds is required for restrike with maximum light output within a few minutes.

LUMEN COMPARISON TABLE
LAMP TYPE INITIAL WATTAGE INITIAL LUMENS AVERAGE LAMP LIFE INCANDESCENT EQUIVALENT LUMENS START TEMP ºF

PL Fluorescent
PL7 7 400 10000 40 490 0ºF
PL9 9 600 10000 60 850 15ºF
PL13 13 900 10000 75 1150 5ºF
QUAD9 9 600 10000 60 850 15ºF
QUAD13 13 860 10000 75 1150 32ºF
QUAD18 18 1250 10000 75 1150 32ºF
QUAD22 22 1200 10000 75 1150 -20ºF
QUAD26 26 1800 10000 100 1560 32ºF
QUAD28 28 1600 10000 100 1560 -20ºF
PLT26 26 1800 10000 100 1560 32ºF
PLT32 32 2400 10000 150 2800 32ºF
Circline
FC8T9 22 1000 12000 75 1150 32ºF
FC12T9 32 1800 12000 100 1560 32ºF
Linear Fluorescent
FO17T8 17 1325 20000 100 1560 32ºF
FO25T8 25 2125 20000 150 2780 32ºF
FO32T8 32 2800 20000 200 3800 32ºF
F20T12 20 1200 9000 100 1560 32ºF
F30T12 30 2250 18000 150 2800 32ºF
F40T12/ES 34 2650 20000 200 3710 32ºF
High Pressure Sodium
LU35-MED BASE 35 2250 24000 150 2800 -50ºF
LU50-MED BASE 50 4000 24000 200 3710 -50ºF
LU70-MED BASE 70 6300 24000 300 6100 -50ºF
LU100-MED BASE 100 9500 24000 500 10750 -50ºF
LU150-MED BASE 150 16000 24000 750 16700 -50ºF
Metal Halide

MH50/U-MED BASE 50 3200 6000 200 3710 -20ºF
MH70/U - MED BASE 70 5000 10000 300 6100 -20ºF
MH100/U - MED BASE 100 7800 10000 300 6100 -20ºF
MH150/U - MED BASE 150 12500 10000 500 10750 -20ºF
MH175/U - MED BASE 175 14000 10000 750 16700 -20ºF

LIGHTWAYS INDUSTRIES

28435 INDUSTRY DRIVE

VALENCIA,CA 91355

TEL:(800) 325-4448 (805) 257-0286

FAX:(800) 323-2346 (805) 257-0201

E-Mail: info@lightwayind.com

Website: www.lightwayind.com

VALENCIA, CA /NEW LONDON, IA

© 1998 Lightway Industries, Valencia, CA - All Rights Reserved - In our efforts to constantly make improvements, we reserve the right to make changes in specifications without notice.