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TECHNOLOGY FOR CHANGE

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  • A user comment on this articlePosted on: 02-22-10 | By: caleonI assembled one as a night light and it's very bright and consumes less electricity. The only downside is that cheap white LEDs from China don't last long. Well, I can't afford the good ones( if I ever find one in the Philippines)
  • Not so fastPosted on: 02-19-10 | By: Stu11 years ago, I received 4 samples of LED industrial grade panel indicator bulbs. Needing only one for the job, the others became night lights. 97,000 hours later, there is no sign of degradation, and two of them sit in outlets above baseboard radiators. Impressed, several years ago I bought 5 consumer grade night lights for the rest of the house. Within months, 2 failed and third grew quite dim. 100K hours? Yes, if properly designed. It has taken 15 years for CFLs to recover from bad word of mouth. High failure rate coupled with outrageous claims of light output and efficiency nearly did them in. We now see much of that with LEDs. 10X incandescent efficiency is not realistic, not now or 3 years from now. Ultimately 15-25% better than CFLs is doable. Hopefully, the creep of LED lighting into fringe applications will spur further development toward cost-effective mainstream bulbs. No one is putting $100 bulbs in living rooms when name brand CFLs can be had on sale for $1.
  • LED BulbsPosted on: 01-19-10 | By: kwcI have purchased 2 LED Flood bulbs for my home office work area and the light is great. The intensity is perfect and the savings fantastic. I have even seen where they have come up with LED "Plant Growing bulbs". those will be my next purchase to replace my old flourescent plant bulbs. Hopefully the LED version will work as well. They have been able to perfect CFL's to work with dimmers, which although not bad, isn't the greatest. Now if they can perfect a method to make LED bulbs work on a dimmer, I would replace all my home lamps with these energy efficient bulbs.
  • LED based lights in UKPosted on: 01-13-10 | By: UK GuyLast Feb I replaced 6 x 50Watt halogen spotlights in my kitchen with equivalent LED based lights (2Watts each) and have now replaced them with 20Watt halogens after every one of the led based lights failed (a transistor / capacitor type component inside them blew up on everyone - the actual led's seem fine) - each bulb cost me £10 or so (I in UK ) and they just had 6 months warranty so I am out of pocket for them and no closer to cutting my running costs! I wont be buying any LED one's till they become more wide spread.!!