12v power supply question

[howardb]

Hi all, I have a power supply at home thats from a garden light set, which had 5x garden lights with 20w G4 halogen globes (100w in all).
I'm re-purposing the lights for another outdoor project and will be using LED G4s instead (2w each)

The power supply states 230v input, 12v output, 60va rating on it; just wondering what the max number of 2w G4s can be connected safely.

Any ideas/suggestions?

 

[The_MAC]

Have a look here for explanation of W and VA - difference-between-watts-and-volt-amperes

Here's how to convert - va-to-watt

So, 60VA * 0.8 (Power Factor) = 48W
48W/2W = 24 Bulbs

Just as a FYI, I found very cool G4 LED bulbs in a china market, they were not a single LED but little corn-cob style bulbs i.e. many small square LED's placed in a cylindrical orientation, they give off so much more light than the G4's that you can buy at a hardware store, and they sell them in warm white.

 

[upup]

If I am right in my head, you got 52Watt there. So 25 globes.

Please note that thing got a day / night switch build in.

 

[howardb]

Have a look here for explanation of W and VA - difference-between-watts-and-volt-amperes

Here's how to convert - va-to-watt

So, 60VA * 0.8 (Power Factor) = 48W
48W/2W = 24 Bulbs

Just as a FYI, I found very cool G4 LED bulbs in a china market, they were not a single LED but little corn-cob style bulbs i.e. many small square LED's placed in a cylindrical orientation, they give off so much more light than the G4's that you can buy at a hardware store, and they sell them in warm white.

Many thanks sir, will take a look!

 

[howardb]

If I am right in my head, you got 52Watt there. So 25 globes.

Please note that thing got a day / night switch build in.

Many thanks Robertvv. Yeah will be using the day/night function on the re-purposing project. Couldn't find a similar supply readily in SA, but should be fine for the project; expecting to use no more than 20 Led G4 globes