This set contains all the accessories you need to get 5v from upper vvoltage. This set contains 7805 IC with heat sink, 10uf capacitor, 0.1uf 104 no ceramic capacitor, 1 led indicator with 1.5k resistor.
Its a DIY kit so you need to make the circuit yourself.
Using this citcuit you get 5v output from 7-35v input and 1..5A max current.
this is a step down voltage circuit. Attach heat sink to 7805 ic always.