Originally Posted by
lukasz
What are the disadvantages to using a drop-in solution like the original poster did? His build seems much simpler than making your own circuit and all that. The copper housing also acts as a heat sink, correct?
You are right, the housing also acts as a heatsink.
There are no disadvantage, for me it is all about the parts I have available to house the light. 1 light usually not much of a problem, if you are building one with more than 1 then mounting and casing for the light can be an issue.
I've just finished building a second set of light for my wife using a stainless steel salt/pepper shaker.
I got the idea from here:
http://www.pilom.com/BicycleElectronics/triLEDhead.htm