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Reviews

Displaying 37 to 42 (of 1834 reviews)
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  • 30W Cree XPE Custom Made Cyan LED 490-500nm 30 Watt Blue Green Aquariums Light Bulb Lamp
  • 30W Cree XPE Custom Made Cyan LED 490-500nm 30 Watt Blue Green Aquariums Light Bulb Lamp


    Description: I was very disappointed to find that this is not made with 10 cyan chips which emit light 490 - 500 nm, it is made with 5 blue and 5 green chips instead. I have asked, but I have not yet been told what wavelengths of light the blue and green chips emit.

    Human brains interpret the mixed blue and green light as cyan, so if you are just interested in the color you see and not in the specific effects of 490 - 500 nm light, this is a good light. If you want light between 490 - 500 nm, this light will not provide it - when you mix colors of light like this, the individual light waves don't change, they are still either blue or green.

    The description is seriously wrong and misleading. ...
    Date Added: November 17, 2013
    By: by Carpenter

  • 50W White High Power LED
  • 50W White High Power LED


    Description: High flux. Very very very bright. Low decay and long working lifespan. More energy efficient than incandescent and most halogen lamps. High heat outlet, you will need a verygood Heatsink...
    Date Added: November 15, 2013
    By: by William.Cozby

  • 500cm 5050/5060 RGB SMD LED Light Strip Power Supply Ready to Use
  • 500cm 5050/5060 RGB SMD LED Light Strip Power Supply Ready to Use


    Description: This review goes out to the original combo package with power pack and an additional reel of LEDs.

    First off, you have to plug them in right to get the LEDs to power ON. The strip may be waterproof, but I doubt the other components or connectors are waterproof. So protect your investment by either sealing the connectors or containing them in weatherproof boxes....
    Date Added: November 12, 2013
    By: by Tommaso.zdesar

Displaying 37 to 42 (of 1834 reviews)
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