On 11/06/2021 21:06, T i m wrote:
On Wed, 09 Jun 2021 16:35:31 +0100, "Dave Plowman (News)"
wrote:
snip
I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.
The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(
Mains hum from an electronic ballast? Something not right there as they
(should) run at a higher frequency to get rid of flicker.
I just upgraded it and you were right, it wasn't HF (so at least that
makes more sense re the hum).
I took it down so I could see / access it better and it's just a std
LF job but with an unusual (to me anyway) 'built in' electronic
starter.
https://www.youtube.com/watch?v=hjph...bigclivedotcom
--
Adam