(Home) Lighting Package?
 

From BMW Accessories Catalog:

Remote lighting technology lets you illuminate your house from inside your X5 - without the clutter of extra remote control units. Two lamp modules allow activation of up to two home lights from your vehicle; also operable via included home controller unit. Utilizes HomeLink lighting accessories.

Part no: 82 11 0 006 660

Price: $79.00

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Have anyone tried this?

What's the limitation of this light control unit?