Is Oakley Polarized Worth The Price

time again LED lamps

Links LED, Right ESL.

last Thursday and is now one of my 7 W-saving lamp GU10 lamp adopted here. After a little over 20,000 hours of light he must also. This course was going to search for a replacement, by my Sparfimmel "is simply the same again 'after all, too boring. The list of requirements is of course not without: GU10 base and 350 lm (based on a 35 W halogen lamp of this design).

The most obvious would be again the same technology that existed at that time only of Megaman; today but also on various no-name brands. As a result, the lamps instead of pork cost EUR 15 € now only the 10th

But the technology goes so, so cast a glance at the LEDs. This one is quite surprised, lamps with more than 100 lm / W are present in broad-based trade. This would be advisable for the intended purpose, 4 W. That was the theory, for the visit at the hardware store promotes three GU10-LED lamps to light:

• A patently Noname lamp "Premium", probably a private label with 3 W based on a very large LED in the middle. About how bright the thing is, the description loses a word, is only as great, "90% savings. That would be quite more than 300 lm, but "just try" for me is 20 € clearly too much. Thanks very "environmentally friendly" plastic packaging is nothing to test before buying.
• By Philips also has a 3W LED, but here was little more than Vorführexemplar. So, I can not judge the declaration on the packaging. evaluate the brightness of a GU10 lamp in this Vorführkasten, I do not really possible, but I can the thing a very pleasant light color inspector. The exact color reproduction would have one out.
  
  And while we're finding out, are indeed Philips has a website (as opposed to the manufacturer before ...), where you will also find a 3 W LED light products. "3 W, replaced 35 W." Sounds good. "150 lm." Sounds so good. Actually replaced the thing maybe 15 Watts and is not as efficient as a bulb (though after all mercury-free). There is 7 W version is also available - 230 lm. Corresponds to about 25 W, making it even falls back quite far behind the bulbs, or their little brother. Light color 2700K and color rendering index of 90 (equivalent to halogen and is quite clearly about saving lamp Also one) but at least in this area confirm the positive impression. Expensive (than 3 W) 15 €. The 7-W version had it not easy.
• candidate number three is from Osram. Sorry But that's only "Deco Spot" series in stock and you have to look at 1W not really on. For light there is nothing that exercises in Kundenverschreckung website (their database errors also get some point in the handle?) And in the infinite depths found "100 Candela, 20 ° viewing angle. Yes, you could convert it somehow - but I feel like it is very close at 0 I then searched for the price any more.
• Give it does at Osram There is more, the website you can find the "PARATHOM PAR16" 5 W, so bright as to be 35 W. In the database the same problem as before, this time with 350 candela. Well look out to be a matter once the conversion. The abysses of Wikipedia this are deep, the {Unintelligible {}} -Bapperl multiply as the same time, but there is this sentence: A light emitting diode has an opening angle of 20 ° and a brightness of 15 cd, the light power results in Φ = 15 × 0.0955 = 1.432 ln . In other words, looking for would be something here at 4800 cd ... Either I count wrong, or Osram exaggerates even more indulgent than Philips and the thing has just the efficiency of a light bulb ...

After this being evil sobering result, I then even tried eBay . is pulled over the table like you here - "As bright as 40W! and in the small print "150 lm. After all, the whole front of such 6-7 €. I found one at the end of the specified 480 lm at 3.5 W for about 7 €. The same has proved to be lucky: in fact, quite significantly brighter than the added quite worn-saving lamp. Meanwhile does the thing but also 17 € : /

There are now lights the way with 200 lm / W, which should however be more expensive and more pork is not available as ready-light sources are. This would then 2 W for my application is sufficient and a 60-watt bulb can be replaced with 3 W - 95% savings and even compared to the "bulbs" still 70% less consumption. But as long as the manufacturer (Whether established or noname) lie in the brightness of that to bend the bars indicate the same or nothing at all, LEDs will certainly have a hard time and probably at some point the board as "are anyway much darker than promised" to be rejected.