If your authorised representative in the EU put your products under his/her own name, then she/he takes over your responsibilities. In this case he/she must have sufficient information on the design and production of the product, as he/she will be assuming the legal responsibility when affixing the CE marking.
Many of the larger inverters come with a built in charger. Typically a 2000 Watt or larger inverter will have a 50 to 100 Amp 3 stage charger. These are much better than the typical RV converter/charger. If you are planning on a more powerful charger anyway, the combo units make sense.
From the Manufacturer. The R56 Can Converter converts 5 or 6 recessed can lights in minutes. The Can Converter is a revolutionary product that adapts almost any recessed light fixture or can light to work with other types of light fixtures. This handy light adapter makes it a snap for anyone to install can light conversions.