On Tue, 25 Apr 2017 19:11:49 +0100, Rod Speed wrote:

James Wilkinson Sword wrote

Yes, I've googled it, but there are many different
approaches. Which one is used in domestic LED bulbs?

Varys with who is doing the bulbs. The cheapest ****
does it differently to the stuff with the long warrantys.

Don't they all use something similar to CREE LEDs?

--
A backward poet writes inverse.