Yes its all passive cooling, keep in mind that whole of the lamp is a big heatsink of aluminium and no fan is needed.
I'v been using the first Philips Corale Care version during last two years, and the heatsink function as a charm, and of course zero noise.
I think that the PCC may be is the nearest Led fixture to the old T5 fixtures, at least when we tallk about natural light term.
Yes 10kg, my fixture was on my tank with a boxing bag holder, and is not a joke ;=)
I dont know which is the coverage that the new fitxture has, but the first one was 90cm x 60cm (35" x 23") and is true, i mantain with great success SPS on both sides of a 39" long tank with only one PCC Fixture.
Some pictures of my tank with First Philips Corale Care Fixture Version: