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
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.