Yes, but you would not have the lights and smoke activated. And these are regular 5 volt bulbs/smoke unit that will exceed the revo function key current ratings. Change the front/rear lights to leds for longer battery life and disconnect the cab light.
Note that LGB runs smoke and lights at over 6 volts and there is a high start current until the elements heat up. I have seen the smoke units at over 200ma on start up but can drop down to less than 120ma when hot.