Electronics > Projects, Designs, and Technical Stuff
New LED lights reliability
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Kjelt:
apples and oranges.
Led light strips have a diffused light for coves and large area lighting.
Led spots have a focussed light beam to accentuate certain objects.

Besides the efficiency of led strips is low due to the resistors

Kjelt:
Led strips use low power leds (typ. 20 mA) (0,06W)
Led spot lights use medium power leds (200-500mA) (0,5-2W)

When you can live with diffuse lighting and still want more light I would suggest make your own led panels with medium power leds and as many in series per string as your led driver supports to get high efficiency.
Nauris:

--- Quote from: OwO on February 06, 2019, 09:36:06 am ---Building a good quality LED lamp is not hard, as long as you are willing to give up the "bulb" form factor. All you need are some LED strips, a good quality power supply/driver, and a big aluminum plate.

--- End quote ---
"Linear fluorescent tube" is a good form factor, it has all you list in easy to change unit, well maybe not aluminium plate but glass tube instead but they don't run hot. We have two dozen and not a single one broken yet and they are well past 10k hours already.
rrinker:
 Guess I better get more of those Utilitech 60 watt equivalents before they get blocked from selling them. I have LOTS of those, those are the ones I typically use for most standard light fixtures. I replaced every other type of light in my house with them, going on 5 ears now I think I have one failure, although sometimes it works so I haven't bothered to replace it yet. It's in a multi-bulb fixture so there's still plenty of light. I have a couple of fixtures plus an outdoor pole light that use the candelabra base type, those are all still going strong. The newest ones replaced my back yard floodlights, but even those are almost 3 years old now with no issues. And those are on ALL the time, always turn on the lights to let the dogs out. So they get a lot of use PLUS lots of cycling on and off. Multiple times per day. Pretty sure even those are Utilitech brand.

djacobow:
Just another datapoint:

I have a bunch of Home Depot LED cans installed about 7 years ago when they were $40-50 a pop and they are all still going (knock wood), though the built-in, non-replaceable fascia has yellowed. They also work nicely with dimmers.

I also have a bunch of Edison-base bulbs in ceiling fixtures in the kids' bedrooms and these fail at an alarming rate. These are enclosed fixtures with the bulb mounted horizontally and with no airflow. I have tried different brands, cheap, expensive, n between. I don't think I have seen a single bulb last more than a year without failing. I keep throwing money at this, but ultimately, I think the solution is new fixtures.

I think the testing on the LED edison style bulbs has mostly been done in simulated table lamps: bulb upright in free airflow. This is, unfortunately, probably the ideal circumstance for bulb and not a good simulation of modern usage.

I'm pretty disappointed overall.
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