I should mention that I do have a headlight light meter so we’ll actually have quantitive data.

;o)

Last “H4” sized LEDs I saw were on superbrightleds.com at $100. that’s why I took the plunge at $19.00.

They say that they’ve shipped and should be here next week sometime.

We shall see.

On Jul 3, 2015, at 9:50 AM, Neil N <musomuso@GMAIL.COM> wrote:
> 
> 
> Thanks very much David.
> That explains what my gut felt;
> how can emitters do the same job as a filament.
> Especially in a housing etc. designed for the latter.
> 
> I'm sure Jim will report back.
> 
> Neil.