Mosfets needs are isolated install on the heat sink which has 5K / W or less.
Warning: in the event of the short-circuiting on the conductor from the bulb will come to the burning of upper complex because of the overheating.
If wants protects the complex from the short-circuiting, was able the modification schemes this will seem like this:
The additional complex look out for the voltage on mosfetis. If this voltage longer time (the 1 second with 470uF) brings out more than 1.2V, electrolytic capacity with will fill and mosfets irretrievably shut down. Resets is performed the interruption power supplies on the 60 second.
The upper complex was able will use and for the limit current at DC of motor, but necessary increases capacity that the motor arrives speed. Side effect is that at overloads inside a few second motor loss the power supply (if up to then not did come to unload of motors)! Resets is executed the pause from approximately the 60 second.