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3w white

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3w white Customers Reviews

  • Impressed

    posted by salobinha

    Bright enough. I'm lightning an interior wall and it works perfectly. It was pretty easy to install on the ceiling, close to a big pendant light.
    As a spot light, works pretty well. Could not find anything at DX better for the same purpose.
    Despite of the cons, I recommend this product.
  • Easy to use lamp for your usb device

    posted by skyisgreat

    Easy strong and durable reading lamp to attach to your usb port on your device. It gives you constant strong light arround your device.It is bendable to the angle and degree you want to so it is easy to use in many positions.The colour is uniform and durable as well.
    Worth the price.
    I would buy the item again if needed or to offer to someone neading lighting near a desktop for instance... It has multiple aplications and it giver a bright light. That's why you get it. As simple as that. =)
  • Very cheap light for my garden lights

    posted by Bartus72

    - This G9 bulb has a very nice color of light (kinda blueish)- Here in The Netherlands i can only buy a halogen G9 bulb no lighter than 18 watt on 220 V. This is only 3 watt. Now I can lighten the garden with only 15 watt (5 * 3 watt). This is even less watt than one of the halogen bulbs.- This is very cheap here!
    - I really love this light
    - Very cheap LED G9 bulb that gives (for me) a very nice blueish mysterious light
  • Powerfull UVA lightsource for making blacklight or detectors

    posted by lasermanathome

    Althought the eye is about 1/2% as sensitive for this color as for the same amount of green light, the fluorescent effect using only one of these leds is remarkable and can be brought to spotlight with the proper secondairy optics , so you can build a powerfol coolant detector for the garage and other functions like markings made of fluorescent paint, human fluids etc.
    To make an array gives you a very powerfulle Blacklight, even stronger than 400 Watt high pressure mercury dichargebulbs with only 10 of these leds!!With perfect cooling 3 Watts are no problem , without cooling 0.3 Watts is about the limit.Used in completely dark circumstances they can irritat your eyes so better build them in a WF 501b and correct driver like I did my shelve.
    For blacklighteffects and for laboratory instruments , these leds are very convenient.Use a correct driver and use coolnig grease , mount them on a thick aluminum plate and , when used many, use a blower, the cooler they run the mure invisable blacklight you get, as almost any colorled, the wavelength depends on the temperature of the ledcristal.When they become hot, the wavelenght goes to 410 nM , whenn cool is stayes below 400nM what is much less visable.
  • Good LED spotlight, with caveats

    posted by DrewdQueue

    + Good brightness for minimal power usage.+ Nice even throw of light, very symmetrical, can't tell it uses 3 emitters.+ Aluminum heatsink-fin design means exceptional heat management, hardly heated up at all.+ Good price.
    Although I may sound overall negative, this bulb is very sound and delivers _exactly_ what it promises. I'm happy with it and intend to use it as below.
    A good-quality long-lasting LED spotlight bulb, light quality is somewhat harsh for domestic use. This would make an excellent light for any work bench, desk or table where you need a lot of light focussed right on fiddly work such as soldering, electronics assembly, modelling, fine needlework and so on.

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