yeah for example what is fine? i know they work fine. again the output of these light will diminish to about 80% after 4 years. even then they would work fine but why not design better units to begin with.
spread out the diodes sure, drive them softer yes, some doesnt agree fine but bigger heatsinks or atleast better heatsinks with more fins maybe fins extending from the sides as well between the bars etc etc. if you have to hang fans to blow on your fixtures to keep it cool how is that different than using pc fans?
what i’m asking is why cant i run them at 100% in a tent with just my exhaust fan running. isnt anyone else bothered by this?
i dont think pc overclocking applies 100% to this situation because a typical pc user as you suggested will not notice the difference but they would notice 4 years. mars says for example lifespan of 50000hrs lets say thats q80. thats still about 6 years at 24hrs on. so saves you 2 years at 24hrs on. this is noticable. this is 50% lifespan increase. if you densely pack these diodes i dont think you’ll see drastic differences between mid wattage cobs as 1830s i’ve been using and those were getting seriously hot without pc fans.
thats the deal, since the low end manufacturers dont produce this shit you’re at the mercy of the high end tier and those lights are more expensive because people say shit like mars hydro fc 6500 runs cool to the touch and works well instead of saying it runs hot as a mf and i’d steer away from anything that runs this hot because the typical lifespan quoted for diodes will not apply to these fixtures etc etc.
youre basing your estimations on what migro guessed in a youtbue video.
nothing wrong with that, it gives the direction and tells us some but its no absolute number.
most people here struggle to give 100% on their given area, so their fixtures will last way longer.
also consider that most of the people here would have replaced their fixture within 4y.
4y is a long time for diodes.
with corona and the ukraine war, update rates on diodes became slower, still 4y is a long time for a LED.
and youre still at 80% output.
am using my EB3 bridgelux now since 3y quite constant and measure with a spectrometer.
do underive them heavily, havent noticed any loss in output.
bigest losses will be due to dirt or nicotine stuck to them.
they hardly have seem temps above 30c as bare pcbs without heatsinks,i expect them to last years more but would buy EB4 or 5s if theyre out finally.
simply for power saving reasons which are important atm.
even if you place mid power diodes almost next to each other (which is stupid) youre not going to gain the density of a COB.
when comparing COBs and mid power leds see the typical power used per area.
huuuge difference there, never forget that, do the math.
