Christmas lights battery ..change to plug

jdmgriffin · Dec 13, 2023

have a set of lights that i would like to use plug over battery.
have a few plugs and old sets with cables could Frankenstein together if doable.

this is the set if anyone has any suggestions on how/what min transformer plug would be required.

its a 20m set and i have another 20m set so looking to convert both to plug..or connect the two and run from one plug ?

photo of page with lights

photo of transformers and connection end of a few sets i have that no longer work due to damaged wires

littlespark · Dec 13, 2023

What’s a “3AA” battery?
Does it mean 3 x AA?

That’s your normal size for lights… either AA or AAA. Both are 1.5V… so 3 of them give 4.5V.

Your plug in transformer gives off 31V, possibly AC rather than the DC you get from battery’s.

You can get battery adaptors… which are mains powered transformers that the output cable terminates into a dummy battery shaped connection that you place into the battery box instead of single cells. I’ve seen them in local garden centre that sells Xmas lights.

mainline · Dec 14, 2023

jdmgriffin said:
have a set of lights that i would like to use plug over battery.
have a few plugs and old sets with cables could Frankenstein together if doable.

this is the set if anyone has any suggestions on how/what min transformer plug would be required.

its a 20m set and i have another 20m set so looking to convert both to plug..or connect the two and run from one plug ?

photo of page with lights

photo of transformers and connection end of a few sets i have that no longer work due to damaged wires

Not worth the effort of trying to find a 3v power supply, just buy a new set or use rechargeable batteries in the ones you have.

If you're really intent on doing it, then buy a variable power supply / module.

Spoon · Dec 14, 2023

3v power supply, from CPC.

https://cpc.farnell.com/powerpax/sw4177-1500/uk-power-supply-3-12v-adjustable/dp/PW04007?CMP=CPC-ebooks-BIGBOOK2019

mainline · Dec 14, 2023

Adjustable Electrical Power Supply Adapter Charger Variable Volt AC/DC 3V-24V UK | eBay

After comprehensive testing. Ensure safe use of electricity. Output: DC 3-12V / 9-24V adjustable. Output current: 5A/3A. DC plug: 5.5MM 2.5MM. Plug: UK plug. Power: 72W(9-24V) / 60W(3-12V).

www.ebay.co.uk