Do the reverse light housing and the turn signal housing have a reflector behind the lens?

I want to get CREE LEDs for reverse light and turn lights. They only project the light forward, if there is a reflector it won't get any light.

Check here for picture and video. These are 5W, you can get 7W now.

5W CREE LED Reverse Lights


Thanks

 

Nahh.. not the reverse back up light. I tried. I wanted to use that too..