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Pulsestrike™
- View the Difference |
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What is the difference in Metal Halide
arc tube bodies?
PulseStrike™ pulse start lamps have formed
body arc tubes and require an ignitor to
start the lamp. Standard Metal Halide lamps
have pinched arc tubes with a probe start
electrode and a bi-metal switch with crest
voltage to start the lamp.
- High efficacy
- Superior lumen maintenance
- Longer lamp life
- Envelope contour follows natural curve of arc stream
- Standard technology over 35 years old
- Uses additional probe start electrode
- Larger cold surface area; reduces metal halide efficiency
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PulseStrike Formed Body |
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Standard Metal Halide
Pinched Body (Probe Start) |
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Improved Color Uniformity
The formed arc tubes of PulseStrike™
lamps are manufactured to precise
geometry tolerances. Thus the
temperature of the arc tube can be
controlled more accurately, reducing
color temperature differences from
lamp to lamp and improving color
maintenance over the life of the
lamp. |
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Energy Saving
The formed arc tube of PulseStrike™ lamps
and the use of pulse start technology
ballasts enables the PulseStrike™ lamps to
produce up to 105 lm/W. Standard Metal
Halide lamps begin life at a lower efficacy
of approximately 80 lm/W and their light
output may rapidly decrease over time.
A facility requiring fifty standard 400W
standard Metal Halide lamps, can be fitted
with 320 W PulseStrike™ lamps for an annual
energy savings of $5,250. $105 per
fixture savings @ $0.15/kWh (24 hour
operation cycle).
Superior Lumen Maintenance
In the formed arc tube of
PulseStrike™ lamps, the use of a
pulse start ignitor and low current
crest factor results in less
electrode wear and thus producing
superior lumen maintenance over the
life of the lamp. In standard
pinched body Metal Halide lamps, the
probe start electrode is not in use
when the lamp is burning;
consequently, resulting in
additional tungsten evaporation,
quicker blackening of the arc tube
and reduced light. |
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Faster Start-up and Re-strike Time
The formed arc tube of PulseStrike™ lamps
and the use of a high voltage ignitor,
enables the Metal Halide gases to be broken
up faster (up to 50%), allowing a higher gas
fill pressure. The formed arc tube design
furthermore means less mass that has to be
heated, thus resulting in a faster start up
time. This also ensures quicker cool-down
time, allowing the lamp to be re-struck
faster.
Longer Life
PulseStrike™ lamps have a long rated life,
and maintain high light output over the life
of the lamp. This enables the user to
replace lamps less, thereby saving on lamp
and lamp change-out costs. Standard Metal
Halide lamps have long rated lamp life;
however, due to the lumen output drop over
lifetime, they become inefficient very
quickly.
Higher Lumen Per Watt Efficacy
PulseStrike™ lamps are 20% more effective at
the beginning of lamp life, boasting up to
160 lm/W and approximately 40% more
efficient over the life of the lamp. This
gives a superior mean lumen package.
Standard Metal Halide lamps have an efficacy
of approximately 80 lm/W. This light output
rapidly decreases over time. |
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Better Cold Starting
The formed arc tube of PulseStrike™ lamps
and the use of a high voltage ignitor, again
enables the higher fill pressure Metal
Halide gases to be broken up faster. This
enables the use of these lamps in very cold
areas as low as -30ş C, cold storage
facilities and freezer warehouses. Standard
Metal Halide lamps take more than 6 minutes
from start up to full lumen output and in
very cold conditions, they may not start at
all. |
