lv transformer question

The *total* max load should be marked on it somewhere. Because it is externally the same as another doesn't mean much. So if it says 20w that is the maximum.

Hmm, the only rating in watts on the transformer is 20w. I just find it hard to imagine that a 5 way transformer would be rated so poorly, I mean do 4w bulbs even exist???

Cheers

The item in you Toolstation link looks like a switching type power supply. Thermal overload and short circuit protected are a bit of a give-away. I guess they are called "transformers" for historical reasons.

If yours is also of the switched type, it's obviously older and may well be the same size for a much reduced output.

I have several different LED transformers which have different power ratings, but are all housed in identical boxes, with identical connectors, probably because it isn't worth the hassle of manufacturing slightly different boxes for each variant. The 5 connectors are probably only be there to allow higher rated models to make use of them.

dan.

ok, so it is realistic that it is indeed a 20w TOTAL that the transformer is capable of! I will buy an uprated model to suit my requirement.

Thanks for all of the answers.