General Maintenance & Repairs - Electrical problem???

Hi people!!! I really need help please. When i start the engine all my lights turns on (interior & exterior). I check the switch and seems 2 be ok, im not sure if i have a bad battery or????? Anyone knows whats happening here????

your auto light sensor might be bad or have something covering it making it think it's dark out?

Might be that but can you tell me where's located that sensor?