Ballast POWERTRONIC PTi 35/220-240 brand OSRAM. Electronic transformer 35W for bulb metal halide 35W. The ballast PTI 35W is a transformer electronic, less energy and less bulky ( 171 X 83 X 32 ) than a transformer ferromagnetic. The Powertronic are plates of very good quality.
Ballast POWERTRONIC PTi 20/220-240 brand OSRAM. Electronic transformer 20W for the bulb to metal halide 20W. The ballast Powertronic PTI 20W is a transformer-less energivore and less bulky than a transformer ferromagnetic. The Powertronic PTI are plates of very good quality.