HOW THEY WORK
G E T H E L P TO DAY
L E T ’ S C O M PA R E
E N E R G Y- E F F I C I E N T
FLUORESCENT LAMP
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L I G H T I N G T E C H N O LO G I E S
Electricity regulated by an electronic
ballast flows from one end of a
low-pressure tube to the other,
through a lot of an inert gas, and a
little bit of mercury. The mercury gets
energized by the electricity, and lets
off some of its extra energy as light.
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MERCURY
E L E C T RI CI TY
EXC I TED
LI G HT
EM I TTI NG
M ERC U RY
HID
FLUORESCENT
INDUCTION
LED
LIGHT SOURCE EFFICIENCY
*HOW EFFICIENTLY IT TURNS ELECTRICITY INTO LIGHT
Initial Lumens per Watt
A N I NERT GAS
End of Life Lumens per Watt
140
120
100
100
HID - HIGH INTENSITY DISCHARGE
85
85
80
Electricity regulated by a transformer, ignitor and capacitor
jumps between two pieces of metal, creating a spark. That
spark reacts with gases in the bulb to create a long-lasting
steady light.
HID
75
70
49
49
60
(HIGH INTENSITY DISCHARGE)
80
40
20
INVENTED IN 1675 BY JEAN PICARD
0
HID
FLUORESCENT
INDUCTION
LED*
*Varies greatly by fixture & application
E L E CT R I CI TY
METAL
I N F I X T U R E E F F I CAC Y
FLUORESCENT LAMP
EFFICACY NET OF FIXTURE USING S/P ADJUSTED LUMENS
INVENTED IN 1891 BY NIKOLA TESLA
AND DANIEL MCFARLAN MOORE
A B RI G H T
CO NT I NUO US
SPARK
Initial Lumens per Watt
End of Life Lumens per Watt
140
126
113
120
100
A GA P
INDUCTION LAMP
E L E CT R I CI TY
40
20
INVENTED IN 1891 BY NIKOLA TESLA AND
JOHN ANDERSON OF GENERAL ELECTRIC
Induction lamps function quite a bit like fluorescent lamps, only
instead of electricity flowing between wire connections inside
the lamp, in induction lamps, the electricity regulated by a high
frequency generator flows from wires outside of the lamp on
one side to wires outside of the lamp on the other side.
49
49
60
INDUCTION LAMP
79
75
80
GA S
113
85
0
HID
FLUORESCENT
INDUCTION
LED*
*Varies greatly by fixture & application
T Y P I CA L L I F E S PA N
HOW MANY HOURS OF CONTINUOUS OPERATION BEFORE
IT NEEDS TO BE REPLACED
LED
MERCURY
120,000
INVENTED IN 1927 BY OLEG VLADIMIROVICH
LOSEV AND IN 1962 BY NICK HOLONYAK JR.
EXC I TED
LI G HT
EM I TTI NG
M ERC U RY
100,000
80,000
60,000
40,000
20,000
0
HID
FLUORESCENT
INDUCTION
LED*
*Varies greatly by fixture & application
AN I N ERT GA S
LIGHT DISTRIBUTION
LED
Electricity regulated by an LED driver flows through a semiconductor
material. The semiconductor has holes in it, and when electrons from
the electricity flow across those holes, they release some of their
energy as light.
FATAL FLAWS
E L E CT R I CI TY
KILLER FEATURES
Q U I C K C O M PA R I S O N
LI G H T
HID
FLUORESCENT
INDUCTION
LED
Small Space
Big Impact
Great
balance
of Cost,
Efficiency
and Quality
Extremely
Long
Lifespan
Long
Lifespan &
Precise
Optical
Control
Energy Hog,
Color Shift
Vulnerable
to Extreme
Temperatures
Each technology has different potential to control light distribution
characteristics. Fixtures with more light distribution options can allow for
more flexible layouts - often reducing the overall amount of fixtures
required to get uniform illumination, and therefore the overall energy
consumption of the lighting system.
LATERAL LIGHT SPREAD
High Initial
Significant
Cost, Lack of
Dimming
Standardization,
Over
Application
Lifespan,
Specific
Limited
Manufactures
HID
FLUORESCENT
INDUCTION
LED
LIGHT DISTRIBUTION CAPABILITIES
HID
A S EMICONDUCTOR
WITH HOLES
FLUORESCENT
WHERE DID WE GET THE NUMBERS?
INDUCTION
(TO THE TRADE)
S TAC K I N G U P T H E F E AT U R E S
HOW LONG IT STAYS BRIGHT
(LUMEN DEPRECIATION)
HOW WELL IT WORKS
WITH CONTROLS
LED
I D E A L S I T UAT I O N S
LED
L e t ’s l o o k a t a fe w e xa m p l e s .
PERFECT FOR
I t d e p e n d s . E ve r y l i g h t i n g te c h n o l o g y
h a s u n i q u e fe a t u re s t h a t m a ke i t t h e r i g h t
te c h n o l o g y fo r a s p e c i fi c a p p l i c a t i o n .
FOR EXAMPLE
FLUORESCENT
S O, W H I C H I S T H E B E S T ?
INDUCTION
HID
MAINTENANCE
COST
*Efficienc y, life-span and lumen-maintenance data is based on
common MH400, Long Life T5 and T8 fluorescent lamps, major
brand induction systems, and delivered lumens from common
high wattage LED fixtures.
HID
FLUORESCENT
INDUCTION
LED
Situations where
a bright,
compact light
source is
needed, or
where the fixture
is exposed to
both extreme
heat and
extreme cold.
Today’s
workhorse that’s
often a great
balance of cost,
efficiency and
flexibility using a
proven
technology.
Situations where
difficult and
costly
maintenance
conditions make
its long lifespan
a big asset.
The lighting of
the future,
perfect for many
of today’s
applications
where precise
control and
careful planning
can allow for
huge energy
savings.
Stadium & Arena
Sports Lighting,
and General
Outdoor Lighting
Indoor &
Outdoor Area,
Warehouses,
Offices,
Manufacturing
Facilities, Retail
Spaces & More
Outdoor Area,
Atriums and
High-Security
Facilities
General
Outdoor
Lighting,
Bulk-Storage
Freezers,
Spotlighting,
Specialty Retail