برق. قدرت. کنترل. الکترونیک. مخابرات. تاسیسات.

دایره المعارف تاسیسات برق (اطلاعات عمومی برق)

What is the difference between T5, T8




and

T12 lamps?





 








 




Fluorescent lamps, or fluorescent linear tubes as


they are also known, are
categorized  according to their
wattage,
shape
and diameter. The "T" in T5
indicates  the bulb
is tubular
shaped,
while the "5" denotes that it is five 

eighths of an inch
in diameter.
The other common lamps are the
larger T8  (eight

eighths inch = 1") and
T12 (twelve eights
inch = 1½" tubes).

The
T12 is
an older generation

fluorescent bulb that  generates light
through
electromagnetic

induction, which is considered  less
efficient method of

creating light
compared to that of newer 
electronic based
circuits. Like the
T5, the
T8 tube creates light 
through
advanced electronic circuits and are

available in standard 2,

3,  4, and 5 foot lengths. However, what sets
T5
fluorescent
lights
apart  from T8 bulbs is their dramatic reduction
in size. T5

lamps
are 40%  smaller than T8 fixtures, but are capable of

containing just
as
much and  sometimes more light in a smaller
area. In
other
words, more T8 
fixtures are needed to produced
the same amount
of
light generated by 
significantly fewer high
output T5 bulbs.

Although the newest T5 lights 
generally cost
more than T8 models,
they
are lower maintenance than  other

fluorescent bulbs. This
combined with
the T5 bulb's ability to 
provide more
light (lumen)
than the other
bulbs means long-term
cost  savings on your

commercial and
residential pro
jects.





















































































Bulb TypeT8 24" LED Tube
Input Voltage120 Volts AC
Power10W
View Angle140 Degrees
Available ColorsWhite 5000-6000KWarm White 3100-3400K
Lumen (Output)975925
Outside Diameter1-1/8" wide
Product Length24"

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