PB 1w seems a be seen light , older 4AA super spot, also a 1w LED, oddly enough is a better see by light.
lens diffusion or that it has more voltage behind it is the difference? , Who Knows ?.
2 kinds of bargains short term disposable ones ,
and long term use for decades ones..
Last edited by fietsbob; 12-19-10 at 12:10 PM.