Can I drive 36VAC Christmas lights from DC

[tdenson]

I have got some decorative LED lights on a holly tree in our front garden but the PSU has broken. It is a 36VAC PSU supplied by Noma who make the lights. I really don't want to replace the lights as there are 720 and it was a big job fitting them. These particular lights don't seem to be sold now and PSUs for similar tend to be DC. Can I run these lights from a DC PSU ?

 

[chivers67]

Well if they don't work at present there's no harm in trying. Have you a Photo of the PSU input/output?

 

[tdenson]

See attached

 

[flameport]

On DC, you will probably find that only half of them work.

Or just buy a replacement: https://www.ebay.co.uk/itm/333539161674

 

[tdenson]

On DC, you will probably find that only half of them work.

Or just buy a replacement: https://www.ebay.co.uk/itm/333539161674

Funnily enough I've got exactly that one already sitting in my eBay basket. Only problem is that it is the wrong connector - it has two equal semi circular holes instead of two flat ones of different sizes, it seems to be the more modern type. I was waiting to see if I could do better. Incidentally I lashed up a 24 VAC PSU to the lights earlier (again with the more recent connector type) and they work pretty well, almost as bright as with the original 36V PSU. Might just stick to that.