[Enon49]

. . . when you need one

I have as follows:

Five strands - 10 ft. per strand - 60 lights per strand -
each powered by 3XAA batteries

my question - can i - is it possible to connect these to one power source - maybe a source that can be plugged into 120

thank you

MrToad

 

[highvoltage]

. . . when you need one

I have as follows:

Five strands - 10 ft. per strand - 60 lights per strand -
each powered by 3XAA batteries

my question - can i - is it possible to connect these to one power source - maybe a source that can be plugged into 120

thank you

MrToad

3 x AA batteries would supply 4.5 volts DC. What you need is a transformer that converts 120 volts AC to 4.5 volts DC. Commonly known as a "wall wart," it's a small square device that plugs into an outlet and has a cord coming out. The tricky part is wiring the output cord to the light strands. We'll need more detail in order to advise you on that. Pictures would help.

 

[Millstonemike]

I presume these are LED lights.

This will work. There's a slight chance you may need two with 300 total lights. And Menards has related product, extension cables, Y cables, etc. You'll have to "interface" the transformers output to the strands connection.

There's lower price versions to be had on eBay ...

 

[T-Man]

Lemax also has a 4,5 volt power supply. That can be found at a local Michaels.

link

 

[Enon49]

3 x AA batteries would supply 4.5 volts DC. We'll need more detail in order to advise you on that. Pictures would help.

Here is a photo -

a total of 15 AA's

thanks for you help

MrToad

 

[T-Man]

Thrift stores have wallwart power supplies. Just find a couple at 4,5 volts DC. Place two sets I series and find a 9 volt DC power supply. Any of the solutions mentioned will work.

 

[gunrunnerjohn]

You're swimming upstream paying premium bucks for the 4.5V wallwart. Buy a 5V one for a couple dollars and add a series diode, instant 4.5V for your lights.

 

[Enon49]

Lights

Thanks so much for the information

MrToad

 

[Millstonemike]

If your electrically adventurous, you can use a variable output regulator. Two or three variable output regulator modules would allow you dial in the brightness for the connected LED strands. Each regulator could handle 2, possibly three strands (we don't have specs on the LEDs themselves).

They're about $2 each on eBay or Aliexpress (3+ weeks ship time). You would need a 12 V "brick" (looks like a laptop power supply and a spare laptop supply would suffice for this application). Or you could use a spare conventional train transformer's accessory output to drive the the regulator modules.

They look like this: