LED Bulbs Faq
For the consumer remains opaque, as the lamp manufacturers get their details and whether they rather come from the testing laboratory or the heat of the imagination of marketing department. The switching capability is easy to test with corresponding experimental arrangements. In life, however short tests of 6000 hours of operation are common, from which the overall life is extrapolated. In the EU, the trade is obliged to provide for a lamp rated life and the number of switching cycles in the item description. The EU Regulation 1194/2013 establishes the minimum requirements for the service life of LED lamps. Accordingly, an LED lamp can …
…After 1000 hours of operation have a maximum premature failure rate of 5% of all specimens, after 6000 hours, a 10%.
…Have after 6000 hours lost more than 20% of its brightness
…Turn out at the earliest after 15,000 switching cycles when the rated lamp life of 30,000 hours or more, otherwise the earliest on the number of switching cycles expressed in the amount of half the lamp lifetime expressed in hours.
A Little Loss Is Always
The specifications show: In terms of a single lamp shall require information on lifetime and switching durability manufacturer to nothing. Who is a 50,000-hour LED fails significantly prematurely who has been unlucky in the logic of identification. The defective copy counts then to the estimated 5 percent, which fail within 1000 hours to the 10 percent who give up the ghost within 6,000 hours or to the 50 percent that are dark throughout the rated life. On the other hand, an LED also last longer than it promises the life.
How Many Hours Are In A Year?
Particular caution is required when a service life in years is given instead of hours. Often the information is based on a relatively low average usage of two to three hours a day. Unfortunately, the statement can not simply proportional convert to a longer average use per day. Blame the sensitivity of the LED is to heat development: reach Many LEDs when they are installed unfavorably, after five hours of operation, a higher operating temperature than after three hours. An increased operating temperature may have a negative impact on the overall life of the one-time occurrence.
An example: An LED is advertised with “20 years service life,” the fine print refers to an average use of two hours a day. If this LED is now operated four hours per day, the total life does not fall to ten years, but at a slightly lower value.
Fantasy Values From Billigheim
Of importance to a defect removal is only the legal warranty of two years from date of purchase. Anything beyond that is running on an extended warranty from the manufacturer or goodwill.
Life cycles and are only partially verifiable values and therefore entice some manufacturers to beautiful the details. It just do, producers cheaper LED lamps produce that can be found again and again as options in hardware stores and supermarkets. No wonder: Even cheap LED lamps operate at typical use in the majority longer than the statutory warranty period. It makes manufacturers view product liability no difference whether the service life of 10,000, 20,000 or 30,000 hours, praising – even though the fabulous values have mostly to do with reality only slightly. Some Billigheimer betting that an increased product sales thanks geschönter values the cost more than makes up for by the return due to low quality. Brand producers however are more prone to conservative specifications in order to avoid a reputation as a braggart.
Security Through Years Warranty
Customers who appreciate the longevity of LED bulbs value, should have above all the promise of guarantee in view. Confidence in quality LED lamps with low failure rate, press the LED bulb manufacturer – LEDbulbbay.com by a warranty that lasts longer than the warranty period of two years. For example, Osram three to four years on its LED bulbs.Ledon and Toshiba provide three-year warranty on its LED lamps. Chance of manufacturers offer a five year warranty on selected lamps.
Conclusion: The Lifetime Is Not Enough
On average, LED lamps older bulbs lifetime and switching strength are far superior. The outstanding values on the paper can be deceiving, however, and are no guarantee of long-term joy of lamps: Monday specimens and a lower standard of quality can provide early for a failure of the LED lamp. Reliable as the spongy recommended lifetimes are guarantee by brand manufacturers.