DX » Community » Reviews » JR-3W Plant Grow Red & Blue Light LED Module - White (Red: 2.0-2.5V / Blue: 3.2-3.6V)
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  • posted byGeorgeDH on 01/12/2014

    Energy efficient way to supplement light for plants during winter months,when keeping them indoors. Exact emission spectrum, matching chlorophill absorbtion,provides oportunity for great energy savings. Blue and red LEDs are not matched to any type of chlorofill - with 660nm red, blue LED should be 450nm or less (royal blue), but it is 470nm. No data ... Read more

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  • posted bycdai8 on 11/24/2013

    - Good quality LED's. Well constructed - very bright. I was surprised. I thought I will need more, but actually even one LED illuminate quite a bit. 5 together will do nicely for a small area - not too hot (well I only did it for a short time to test) - super tiny - no easy indication of anode or cathode. need to either test it with meter or with power ... Read more

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