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light emitter Customers Reviews

  • Very bright LED 3 W

    posted by evgenic

    Very bright LED 3 Watt. Bought it for light fitting SKU81784. The result was a very good couple. Operating voltage - 3.75V, the current 700-800mA for the full swing of resources. The instrument is not measured, but the brightness is very high. The temperature of light perception - cool white (5500-6500K approximately)
    For power supply from AC ~220V can be used LED Drivers - SKU66329 or SKU13552.
    But unfortunately, these drivers will not reveal the full potential of LED 3W, since they give current 630-650mA. But these drivers are the most suitable of all that I found on the DX.In general, I recommend to buy this 3W LED!
  • Excelente iluminação para seu aquário

    posted by agondim

    Excelente iluminamento, surpreende Pelo tamanho e Pelo alto Poder de Iluminação. E UMA boa AQUISIÇÃO parágrafo SUA Iluminação.
    Poderia esquentar Menos, Exige ventilador Dedicado.
    Boa AQUISIÇÃO parágrafo SUA luminária de corais, imprecisona Pelo tamanho Pequeno e Alto Poder de Iluminação.
  • Comfortable warm white light, a bit yellowish

    posted by zebul

    I made several attempts to get an acceptable high power LED light for living room. Cold white emitters were not comfortable. I tried other warm white emitter plates e.g. SKU 142033, but these gave an inacceptable kind of brown-green light and were very inefficient. This product finally has a nice warm white color. Objects look natural.The emitter plate is big, about 5x5 cm. I screwed it on a big CPU cooler using heat-conductive paste and also installed a very slowly rotating fan (8 cm), using 8 single LEDs and a 10R resistor in series to lower the voltage. The chip is easy to solder. I used a constant current power supply from ebay with 32-36 V and 1,5 A resulting in 50W ("RD50-36", 15 Euro, made in China). This is only half the rated power of the LED chip but more than enough for the room. Maybe it's about 4000 lm with this 50W so efficiency is ok.
    I payed 22 dollars, it is worth this price. If you need a high power LED DIY light with a comfortable warm color buy this one.
    It's a pity that DX only publishes positive or merely positive reviews and does not so with negative ones in other cases.
  • Great light, will definitely buy more

    posted by Chips11

    Great light. Suprisingly high build quality. Very solid little light. Bright light, but now blindingly bright...just about right!
    I use these for under-cabinet lighting in my kitchen. They work very well. 3 lights per meter or so illuminates the work surface
    Very solid, well constructed product. Probably the highest quality product I've recieved from DX!
  • bright as hell

    posted by ronald1705

    It is bright as the sun and you can illuminate bigger rooms without any difficulty. Outdoor it reaches about 50m in a wide angle without any optics. The colortemperature is as expected.
    It hurts to look directly at the light, even 20 minutes after.
    If you need it, buy it. sku.47304 is a good Driver for it.
    And donnot forget to get a big heatsink.

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