About Me

Self-confessed do-it-yourselfer, into anything & everything that can be built, restored, repaired, renovated...

Saturday 6 April 2013

LED lamp

After reading this:

http://www.instructables.com/id/21-W-Led-Bulb-1450-Lumens/

I got to thinking about making something similar... The starting point was a 5m strip of LED's.

A suitable former to wrap the LED strip round came from an empty plastic dog medicine bottle.
The LED strip was wrapped in a spiral around the bottle & cut to length (the strip is designed so that it can be cut every three LED's.)
Leads were then soldered onto one end of the strip, the wires being poked through a hole in the bottle.
Finally a hole was made in the lid & the wire passed through with a knot on the inside to act as a strain relief.
The pictures tell the story, the end result is a useful low energy, robust light.
The strip is rated with a power requirement of 4.8W/m, the lamp uses just under one metre which would give a current draw (at 12v) of less than 400mA











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