MATERIAL cost:
lamp bracket: ceiling lamp fixtures (+196,-Ft) lamp price: ceiling 2*18W (+5.839,-Ft)ceiling 2*36W (+6.702,-Ft)ceiling 4*18W (+6.825,-Ft)wall mountedflush mounted light-source price: without bulbFL 2*18W (+820,-Ft)FL 4*18W (+1.640,-Ft)FL 2*36W (+1.510,-Ft)