On 31/08/2019 10:02, The Natural Philosopher wrote:
On 31/08/2019 09:29, John wrote:
I have a light fitting - bars with slidable lampholders - powered from a
circular transformer.Torroidal?

I changed one halogen for a LED. Can I continue to change all 4 - or will
this cause problems due the reduced load on the transformer?

Should be fine

I'd be less happy about an electronic transformer

Electronic ones generally work if you leave one halogen in the set.

One I had worked fine with only LEDs for over 12 months and then started
flashing the whole lot on and off. Two different replacements units
flashed too. One halogen in the set and all worked fine again.

SteveW