The installation is the same as most other comparable transformers and all contacts are adequately labeled. Operate 4 35Watt halogen lamps so (over 1 cable, there are only 3 ports available) The light output is the same as the old transformer (is also from a performance point of oversized)
A separate package, there was not with me, was simply supplied loose my order. I find it not bad, so you may save unnecessary waste.
The hardware store a transformer of this performance class would have cost 40. For this price you can not complain.