Can I replace the wires in the chandelier?

Hello! I want to replace the wires and cartridges in the chandelier. Is it possible to stretch 2 × 0.75 sq. Mm ШВВП wires in a chandelier. To insert energy-saving bulbs at 30 watts - in the new, and in the old 150 watts. Or is it better to put some other wires and bulbs? Chandelier for 3 horns.