O.K...I have my new 68 overlander home

...now what? I plugged the trailer into power form a building...All of the outlets work!!! but no lights. I dont know if it is just that the light bulbs are busted or the switches dont work. I just came in and it was too dark and cold out.
Also...when I plugged it in...the AirStream power command center light came on...just one red light that let you know that there was electricity present....
What else would run on this electricity...refer? stove?