Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Miscellaneous Sections
Tech Head - The Technology Section
The Work Bench and Soldering Station
Light bulbs - longevity and modern technology
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Tururu" data-source="post: 1063950" data-attributes="member: 227656"><p>After 40 years in electronics, I did not know that capacitors of 130ºC are manufactured, every day I learn something new.</p><p>I will continue putting those of 105ºC of quality and not the cheap ones of 5000 hours of life (MTBF).</p><p>These capacitors fail because of the high switching frequency that overheats them, apart from the heat where they are inserted.</p><p></p><p>Remember that LED diodes support up to 50ºC of optimum temperature.</p><p>Above this working temperature your life shortens quickly.</p><p>The 50000 hours of good life are reduced to 1 year at best.</p><p></p><p>The homemade bulbs that I make, have 2 times better dissipation, in 10 years only 2 bad LEDs of 10W (1000lux).</p><p>With the accounts now that I see in the boxes, they are 40-50W of equivalent light. </p><p>-------</p><p>Despues de 40 años en electronica, no sabia que se fabrican condensadores de 130ºC, cada dia aprendo algo nuevo.</p><p>Continuare poniendo los de 105ºC de calidad y no los baratos de 5000 horas de vida (MTBF).</p><p>Estos condensadores fallan por la alta frecuencia de conmutacion que los recalientan, aparte del calor donde esten metidos.</p><p></p><p>Recordar que los diodos led soportan hasta 50ºC de temperatura optima.</p><p>Por encima de esta temperatura de trabajo su vida se acorta de forma rapida.</p><p>Las 50000 horas de vida de los buenos se reducen a 1 años en el mejor de los casos.</p><p></p><p>Las bombillas caseras que fabrico, tiene 2 veces mejor disipacion, en 10 años solo 2 led mal de 10W (1000lux).</p><p>Con las cuentas de ahora que veo en las cajas, son de 40-50W de luz equivalente.</p><p><img src="http://www.imagenonline.com/imagenes/7/a6777.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Tururu, post: 1063950, member: 227656"] After 40 years in electronics, I did not know that capacitors of 130ºC are manufactured, every day I learn something new. I will continue putting those of 105ºC of quality and not the cheap ones of 5000 hours of life (MTBF). These capacitors fail because of the high switching frequency that overheats them, apart from the heat where they are inserted. Remember that LED diodes support up to 50ºC of optimum temperature. Above this working temperature your life shortens quickly. The 50000 hours of good life are reduced to 1 year at best. The homemade bulbs that I make, have 2 times better dissipation, in 10 years only 2 bad LEDs of 10W (1000lux). With the accounts now that I see in the boxes, they are 40-50W of equivalent light. ------- Despues de 40 años en electronica, no sabia que se fabrican condensadores de 130ºC, cada dia aprendo algo nuevo. Continuare poniendo los de 105ºC de calidad y no los baratos de 5000 horas de vida (MTBF). Estos condensadores fallan por la alta frecuencia de conmutacion que los recalientan, aparte del calor donde esten metidos. Recordar que los diodos led soportan hasta 50ºC de temperatura optima. Por encima de esta temperatura de trabajo su vida se acorta de forma rapida. Las 50000 horas de vida de los buenos se reducen a 1 años en el mejor de los casos. Las bombillas caseras que fabrico, tiene 2 veces mejor disipacion, en 10 años solo 2 led mal de 10W (1000lux). Con las cuentas de ahora que veo en las cajas, son de 40-50W de luz equivalente. [IMG]http://www.imagenonline.com/imagenes/7/a6777.gif[/IMG] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Miscellaneous Sections
Tech Head - The Technology Section
The Work Bench and Soldering Station
Light bulbs - longevity and modern technology
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top