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cob warm Customers Reviews

  • 10W 3500K LED Alternative...

    posted by wampyz

    very bright 3500 K light when driven at max spec of 12 V and 900 mA... less bright and warmer 3000 K light when driven at 650 mA... cheaper alternative to the other 900 lumen 3500 K LED chips offered on this site...
    you can over drive these chips with slightly higher current... definitely do not try without a heat sink as it will fry even faster and potentially go into thermal runaway... have over driven the chips to 1050 mA with proper heat sinking...
    better value LED chip than the other comparable ones on this site...
  • it is very good

    posted by maxi06

    very gooooooooooooooood light and so much easy to install . Very bright led .low price .it is perfect to use in DIY system .very low consumption .
    high-power LED is very efficient, Very good luminance compared to normal 70w light bulb don't create a spot like the normal spotlight . The luminance is very smooth.I realized that really, I mean really, diminished the electricity bills by replacing the halogen bulbs with LED bulbs
    very good quality and quite cheap compared to their counterparts of the same quality .
  • Very Bright LED

    posted by csei

    The LED strip was brighter than I expected it to be. Gives a nice warm colour. Easy to solder to pads and has pads each end so was able to connect multiple units easily.
    I do wonder how long these will last without heat sinks as the heat cant be good for the LEDs.
    If you wont them buy them, good value.
  • Wonderful spot light bulb

    posted by dcd_11

    It emits a very beautiful light, neutral white about 4000K like smartphone's led. The luminous flux is truly about 600lm and it's equal to a 60W traditional lamp or a 28W halogen lamp. Materials are very good, without scratches or imperfections and it's also very stylish :)
    The silver part I think is alluminium because it also behaves like a heat spreader. I also disassembled the lamp and I found a little electrical circuit (a tiny power supply I think) well protected with several rounds of plastic tape.
    I threw myself with my eyes closed in this purchase, but I can say I made ??a great deal. Yet another deal from dealextreme!
  • Cheap, bright, essy to use

    posted by lechn

    Very good quality spot led device! Must be driven with constant current 300 mA at ~ 30V. Makes a good pair with the driver 102691 (12 W 300mA, 20-48V), although some flickering can be observed when fed from this device. Gives a very bright, warm light, the color temperature is much like an incandescent bulb. Can easily be fixed to any surface with three 4mm screws (and nuts).
    Gets reasonably hot when on, it's normal. Should be tightly connected to any flat metal surface with some thermal paste, not necessarily to the heat sink. High temperatures shorten led's life!
    Cheap, reliable, easy to use, very bright, warm light

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