Had a problem in Lighting...need help

Unity Engine
1

I want to build a full-dark environment,and the player can search the area by using a flash light…so,here comes the problem,I didn’t add any light, yet still I can see my models,player,blocks,everything…

What should I do if I wanna see the area only lightened by my flashlight? and else areas just reamin dark…

thanks for help…

2

Turn down the ambience , in the Render settings

3

It works!!
Thx so much…~~