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red blue led Customers Reviews

  • Red and blue light, perfect for plants growing

    posted by mingos3

    Works great.A lot of lightLow consumptionRed and blue light wich is the best color spectrum to assimilate chlorophyllVery lightweyght
    The item has 4 screw holes and 2 holes more, I suppose that the 2 extra holes are to connect the cablesThe back side is coated with copper
    Bright light but so much concentrated at a given point. Useful color light: blue and red color (460 nm and 680 nm ) have the appropiate wave lenght to be absorbed for the plants
  • Just buy it!

    posted by Yoekster

    This is really cheap!
    blue an red blinking leds!
    Very easy to mount behind the grill of your car!
    Different programs available on the box
    Not legal is most countries so don't use it on public roads.... but it really works when you are in a hurry! LOL!
    Very cheap so why won't you just buy it!
    You must be willing to drill holes in your bulkhead to mount.
  • So Far So Good

    posted by jlinnema

    Incredibly easy to solder due to the extended legs with through holes. Quite bright. Cool runningSeems to be the correct colors for plant response
    I received 4 of these just a few days ago. Currently running a 19.5V constant voltage supply, 3.3 OHM (10 W) resistor, and then two grow lights in series. The lights are affixed to a 3/8" thick plate of Al with an old P4 heatsink on the other side. Ran for 8 hours with minimal heat buildup and the basil seemed to respond well (went from curved towards the window to vertical while on)
    Much cheaper than purchasing a combination of 8 red and 1 blue LED, and so far seem to be functioning as expected.
  • LED meter

    posted by Egyska

    Simple Voltmeter. Good case. Ideal for adding voltage measurement at home installations in a very inexpensive way. Quite accurate compared to UNI-T UT33C tester. Display has good visibility, day or night. Easily connects to your power supply and operates from the beginning.
    REALLY easy-to-use: just connect the wires and you get the voltage. Measure the alternating voltage from 0 to 600V
    A good product for constant monitoring of voltage. I recommend buying this Voltmeter. Will work as expected.
  • Great product for a great price

    posted by maans1982

    Good Quality product with good brightness. Eye catching LED lights a must for your car. Just switch on the lights and ppl driving in the front wil give you way thinking its cops. Hahaha.
    Please include good quality wires. Wire is too thin and short. One serious recommendation. Please include a good guaged wire and also the length of the wire is inufficient
    One great product for people who love to see LED lights in their cars with stroboscopic modes. Good Quality product with good brightness. Eye catching LED lights a must for your car. Just switch on the lights and ppl driving in the front wil give you way thinking its cops. Hahaha.

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