|The Lights Of America model 2002LEDR30-65K bulb lasted about a year of intermittent use.|
|Once something don't work, you can't bust it. So I introduced it to Mr Saw to see what I could find in it.|
|Sawing around the joint didn't get me as far as I'd have liked, so I ended up sawing off the screw-in part of the bulb. No surprise, this is attached to the bulb innards with a couple wires.|
|I can solve that.|
|Once I had the wires clipped, I could see the insides of the thing. Basicly, it's a small power supply.|
|A little zip cord, and I was ready to see if the power supply was working at all.|
The results of this test was that the light didn't light (the problem
wasn't in getting power to the power supply.
I hooked up my ocilloscope to the power supply outputs that I could
reach and determined that the output was a half-cycle DC voltage. I'm
not sure what it was supposed to be - a half-wave is one way
to make a really cheap DC power supply. We're not talking about a computer
power supply here, we're just running some LEDs.
But, there's more to this thing that what I can see, so a gentle bit of persuasion
|displayed the device innards. 3 wires from the power supply attach to the circuit board. The LEDs are mounted on the circuit board in sets of 8 or 10, with traces connecting the banks of LEDs that are wired in series.|
|Another recent death in the electronics arena was an old DSL firewall/router.|
This provided a 12v 1A power supply, and an adapter that would accept
With a little testing, I decided that I could run 5 LED's off that
wall wart before the LED's got dim.
Some scrap wire, some solder,
and presto -
What used to be a 60 W equivalent LED, and was then a badly-designed paperweight is now suitable for use as a night-light.
My Kill-A-Watt guage says it's drawing 0.03 A
If/When I stumble across a more-powerful wall-wart, I might decide to rework this for more working LEDs.
In the meantime, it's an oversized night-light.