Displaying reviews posted
by certified DX gadget owners first, followed by all other posted reviews.
Just what I needed
Posted by
drac666666
on 2/2/2010
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Expert (understands the inner workings)
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1 day to 1 week
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Pros: These are amongst the brightest of the cheap LEDs you can find. They're just as bright as others apparently rated 17.000 to 20.000 mcd, selling for many times more on eBay or in the local electronics store.
Cons: None really, just don't overdrive them if you want them to last. Cranking the 3.3V up to 6V (like on the LED keychains) will consume far more than the regular 20mA, and will get you 22.000 mcd instead of 14.000, but the lifetime decreases to about 100 hours instead of at least 10.000 hours. It's not very clear whether the projection angle is 15 or 20 degrees, but that's rarely relevant.
Other Thoughts: I bought these when looking for LEDs for an RC heli lighting project. Its also pretty easy to convert an old 2 battery (3V; AA or AAA) convential flashlight to longer lasting LED power with these.
Bottomline: Go for it, you won't regret it. There is little point in saving a few bucks and ordering the 10 or 20-pack, if you can get this.
White 5Mm Led
Posted by
Grifel
on 1/26/2010
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Expert (understands the inner workings)
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more than 1 month
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Pros: The package was exactly 100 LEDs. When properly connected shine very brightly. Low cost.
Cons: None.
Other Thoughts: The legs of some LEDs were slightly bent, as 100 LEDs are densely packed in one package. But this does not interfere.
Bottomline: I've used them for lighting in the car, for this I soldered resistors to 510 ohms for each LED, and connect them to the onboard network of 12 V. In this case, they will work for a long time and at full capacity.
Great for the price
Posted by
Michyx
on 2/11/2009
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Expert (understands the inner workings)
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more than 1 month
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Pros: Bright
Cheap
Very easy to use
Cons: A bit Bluish
They have a bit of variation in forward voltage(which is to be expected)
theyre bagged in a small bag so some of them had bend legs.
it wasnt too much of a problem
Other Thoughts: I build a sixangle spot with 100 leds and it works great and has a great bright light. I used a 400mA dc dc converter. works well.
Because i used 100 the lamp gets a bit warm. not too much though.
Bottomline: A great buy. and theyre incredible cheap.
its hard to write 500 characters
Great price
Posted by
Badger
on 12/16/2008
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Expert (understands the inner workings)
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more than 1 month
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Pros: These are very bright white LEDs in bulk quantity and at a good price. You get a big bag of them and generally they're in decent shape (maybe some might be slightly bent). Even in 100 quantities, at other parts stores these kinds of LEDs would cost about twice as much each.
Cons: The leads are thinner than the other LEDs I've used. They're like DIP socket pins, rather than thicker header-type. This may or may not be a bad thing, though I would've preferred thicker leads.
Other Thoughts: If you buy more than just 100, use the bulkrate discount for a better deal.
Bottomline: Good, cheap, bright white LEDs.