Datasheet

67
RECHARGEABLE
GENERAL PURPOSE
FLASHLIGHTS
PROFESSIONAL
BUTTON CELLS
DISPLAY
SYSTEMS
FLASHLIGHTS AND BULBS Assortment 2012
66
VARTA FLASHLIGHTS AND BULBS Technology
– Virtually shatter proof and
since they don’t heat up they
are very safe, won’t crack and
are vibration resistant
(extremely resistant to shocks)
– Light is much whiter, someti-
mes slightly blue (high colour
temperature)
– LED lasts quasi for the lifetime
of the flashlight (up to 100,000
hours)
– For activities in low-distance
(low performance approx.
150mW)
– Providing longer battery
runtime due to high energy
efficiency at lower performance
5mm / Standard LEDs
LEDS ARE “WHAT’S NEW” IN FLASHLIGHT TECHNOLOGY
What is an LED?
– LED stands for “Light Emitting Diode”.
– It is not a bulb, it does not use a filament. It is a plastic sealed
semi-conductor with phosphorous coating that produces light.
The LED itself is a solid-state electronic device.
– LEDs are highly energy efficient and made without glass.
– Light beam is not created by heat, it is emitted directly from
electrons (cold light).
LEDs vs. Incandescent Bulbs
– Can break quite easily
– Light tends to be slightly red/
yellow (low colour temperature)
– Bulb life cycle only 20 - 30 hours
(the filament is a wearing part,
it vaporises during its lifetime.
– Shorter battery lifetime due
to extremely high power
consumption
Incandescent Bulbs
LEDs benefits
• Durable and
virtually unbreakable
• Extremely energy
efficient
• Resistant to heat, cold
and shock
• LEDs last 50.000 –
100.000 hours
LEDs benefits
• Durable and
virtually unbreakable
• Extremely energy
efficient
• Resistant to heat, cold
and shock
• LEDs last 50,000 –
100,000 hours
2AA Incandescent Bulb Flashlight2AA 5mm LED Flashlight
10 bulbs
2-3 hrs runtime per battery set
~ ca. 160 AA batteries/200 hrs.
0 bulbs
40-45 hrs runtime per battery set
~ ca. 10 AA batteries/200hrs.
Comparison of operation costs in 200 hours of service
– Virtually shatter proof and
since they don’t heat up they
are very safe, won’t crack and
are vibration resistant
(highly shock resistant)
– Very strong, white light (high
colour temperature)
– High Performance LED last up
to 50,000 hours
– Due to high performance
suitable for long distances
– Focusing possible
– High efficiency regarding
the relation between power
consumption and true light
output
High Performance LEDs
Estimated costs*:Estimated costs*:
* Relating to end-consumer price
~ 6%
~ 100%
LED TECHNOLOGY
LEDs: The lightsource of the future
What makes LEDs so special?
The advantages of the LED flashlight speak
for themselves:
– up to 5x brighter light output
– up to 10x longer battery runtime
than conventional incandescent bulb flashlights.
*
*
*
* according to new ANSI FL1 Standard
Now better than ever before: The new LED technology from VARTA
Luminosity (approx.) 180 lumens 80 lumens 32 lumens 4 lumens
Technology (approx.) 4 Watt LED 1 Watt LED 0.5 Watt LED 5 mm LED
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0
10
20
30
40
50
60
70
80
90
100
Conventional
incandescent bulbs
High performance LED
5mm LED
In 2015 about 98% of all sold flashlights will be equipped with LEDs.
5mm LED
3W LED
4W LED
Measures of Comparison
– Millimeter: Indicates the size of the LED in diameter.
– Watts: Measures the electrical power consumption by a light.
– Lumens: Most dependable measure of a light’s true output.
The “standard” in light output.
– Lux (lx): Measure of the illuminance, shows how many lumens per square
metre are reaching a certain surface. The Lux value is the most common
known photometric unit and indicates very clearly the lighting condition at
a special point.
– Candela (cd): Unit of the luminous intensity. It’s the power emitted by a light
source in a particular direction. A common candle emits light with a
luminous intensity of roughly one candela (=1 lx in distance of 1 meter).
22 h
4 h
70h
(on high
mode)