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Higher than normal Efficiency LED lamps

mapj1
This is  big Clive  dismantling  some LED lamps made by Philips, but solely for use in Dubai.

It seems that by using all the good techniques of redundant design, a custom long life, cool running, higher than normal lumens per watt LED lamp has been created.

I personally think Philips own video  is vastly less informative.

I was very interested to hear about these, as here in the UK and I presume the EU we are often assured that be are being sold the most state of the art efficient thing, and really it rather seems we are not.

If you bear with the full 30 odd minutes, (or skip the bit where he is mangling the lamp base with side cutters) you get to  see the internal circuit which includes a rather nice anti-flicker circuit that keeps the LED current constant for changes of a few volts in the mains voltage.

I thought folk here might also be interested to know how they work and indeed that such things exist. Even though we are not allowed to have them of course.

Mike
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    Denis McMahon:

    When I was a child I was amused by the way my mother wound up the alarm clock. She would hold the winder and wind the clock.


    Maybe this was something to do with the winder turning anti-clockwise and Mum being right-handed. I never really figured it out.


    It's often easier that way (especially if your joints have seen better days) - one hand has to twist and the other hold tight to a little key - rather than one hand having to hold tight and twist.


       - Andy.


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  • 0
    Denis McMahon:

    When I was a child I was amused by the way my mother wound up the alarm clock. She would hold the winder and wind the clock.


    Maybe this was something to do with the winder turning anti-clockwise and Mum being right-handed. I never really figured it out.


    It's often easier that way (especially if your joints have seen better days) - one hand has to twist and the other hold tight to a little key - rather than one hand having to hold tight and twist.


       - Andy.


Children
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