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20w led emitter

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20w led emitter Customers Reviews

  • Nice Light

    posted by CraigXC

    These are very nice, bright emitters at a good price - good lumens per dollar. The "cold white" light is a bit bluish, but pleasant - much nicer than "cold white" fluorescent lights.
    Like most LED emitters, the ratings given would be the max - it's overdriving them. Better to run them at well under 1/2 the rated current for long life. Running with 1/3 current, they'll be a little more than 1/3 brightness, the way LEDs work.
    The voltage works out well for 12 volt operation, eg, 12.0 V with .68 or 1 ohm current limiting. With batteries, higher voltage will mean higher value series resistors to get the same currents. (or use constant current supply)
    Safety: Use with frosted diffuser - probably bright enough to damage vision at close range direct.
    I'm using two each for ceiling light fixtures, run from 12 volt DC power adapters. With LED lights like this and Cree XM-LAWT in my house, I'm saving 20-30 $/month on electricity bills.
  • It's great LED

    posted by Mawco

    Most powerful LED for price on DX. It has very nice light color. It is pure yellow in the sideways and the cold white in center. Alltogether is very close to dayligh, maybe little more warm. I can say its true 1600lm. Compared with other 10W LED /400lm and this one is 3-4 brighter without doubt.
    Very bright output with very decent color for very good price... what more we should want? Only if it doesn't produce so much heat...
    Worth every € that i paid... Buy it if you need plenty of light for unbeatable price.
  • Cheap and extreme bright light!

    posted by Perkelehnet

    The light is incredibly bright! I was shocked when I first plugged in the LED Driver (not included)
    It's big, wich was unexpected, but still good.
    I'm going to use this LED outdoor, outside of my garage. Connected to a motion detector, it'll turn on when I arrive with my car, and light up the area. Perfect, I assume :-D
    I bought the LED Driver (sku.42741) for this item, and it fits perfectly.
    Incredibly bright, I have to say it again..
    Including LED Driver and heatsink, you'll get a BRIGHT LED-light for under 30$!
  • Lots of light...

    posted by bengt-re

    Gives a lot o light... i promisse... Good packing and seams to be good qauality
    The best way to cool it is with a older CPU-cooler. Glue it to the heatsink with thermal silikon. The base aloy cooling area on the led fits perfect to the active cupper core on a PIII-cooler.
    A nice led with a lots of power!! I can only recomend this led to users that know what they are doing. The dring circut you will have to build yourself


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