Where to order the development of a UPS for a 220v lamp?

Question

Electronics

UPS for 150 watts, 220 volts. It is possible for 12 V and LEDs or a car lamp. The main thing is to work on a flyback converter

Answer 1

for a diploma or coursework, you can take any scheme from the Internet, you can also use flyback topology.
for practical use, this is all nonsense, because. the right design will cost *10 the price of the finished product.
otherwise, you can order anywhere, but not with this wording.