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LED spots get used more and more and that increases quotient of scare
articles, too. Self-appointed experts offer obvious scare goods. They
use aggressive slogans that shall spark your interest. Of course all dealers
do that but you should know what this is all about:
5mm LED spots:
1) Mirrored/Chromed PCBs
There are LED spots that come with a nice optical appreciation where the
PCB is chromed or mirrored. That has nothing to do with more brightnesse,
longer lifetime or different illumination. It is simple a gag because
the LEDs emitts straight up.
2) Chromed refelctors
please also look 1)
3) 100.000h lifetime
The lifetime is always an extrapolated value. If a manufacturer would
wait up to 100.00h to launch a produkts the market would be far away from
this generation. A common high quality LED reaches 10-50k hours depending
on the type and color. If somebody tells you about 100.000h go and find
another store!
4) No heat emittance
That is absolutely incorect. Every LED emitts heat and additional electronic
parts do the same. But heat is really no problem if the heat management
is ok. The sector of thermal management is very wide so give us a call
if you need more informaton.
High Power LED spots:
1) 3W LED spot
As mentioned above many resellers do not even know which technic is mounted
in the spots. Calculating any amortization data is therfore waste of time.
2) ...Spot with hyperbright LEDs...
This is a imaginary word so be careful! Of course we all know words like
ultrabright and superbright too but these were innovated by LED manufacturers
and still have a meaning. Hyperbright does not say anything. You maybe
buy a pig in a poke!
3) ...Brightness up to xxxlm...
Our light measurement laboratory and technical universities tested a wide range of spots.
The best ones just had the half of its praised brightness.
4) Comparisons to 5mm LED spots
Dubious resellers often compare 5mm LED spot, 1W and 3W high power spots
where the self sold spot wins. These kinds of comparisons are unserviceable
because they do not mean anything because these are 3 different technics.
A stupid try of kidding customers.
5) Questionable comparisons/packings
We often read AS BRIGHT AS A 20W HALOGEN LAMP. Ask the dealer for
detailed measurement data.
6) Wrong product presentations
Many resellers trap with a detailled nice looking cost benefit analysis
on wrong data basis. Most dealers do not even know what they are writing
there. Get an alternative opinion.
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1) The transformer /
the power supply
Fluorescent LampsPlease make sure that no fluorescent lamp is running
in the same electric circuit than the 230V LED spots do. The high voltage
that is used to ignite the fluorenscent lamps might be released to the
circuit sometimes and may cause stress peaks which might destroy or damage
(degrade) the spot(s).
Halogen
spots have very good emitting properties on a 360° vector. As light
emitting diodes are adjusted parts because if their design they are exclusively
emitting forward. That causes a bunched light because of the different
viewing angle of 
If you visit your favourite building center and buy a 20W halogen spot
you have a clear imagination of the brightness this spot will emitt. The
wattage of 20W does only mention the power the spot needsto get 100% of
the spots brightness. This is often misunderstood and even wrong explained
the the end customers by so called 'trained' stuff. Please do never think
that a LED spot with at least 1-3W could realize the brightness of a Halogen
spot. The wattage is only important to define the power consumption. 
Since the beginning of 2007 new 3W high power LED spots are available
on the market. They have a real viewing angle of homogeneous 60° and
are almost similar to a 20W halogen spot. A very easy to use system. If
you want to replace 50W halogen spot you should use our Plug & Light
LED units because a standart LED spot would not stand the extreme heat
very long. The Cree and Seoul plug & light kits went extremly strong
the past months. Try it!
