Here's the response i received from 4zproducts when I e-mailed them that question:

"The lights are weather resistant. We have multiple units installed in several pickups that are outside and exposed to the elements and in North Dakota that is saying a lot." -4zproducts

 

Do the 4z have an on off switch ???? I spend alot of time sitting on the tailgate in the summer after softball games and wouldn't want the lights on the whole time

 

Yes they do, its in the pix i posted earlier, if you look close at the pic of the one light it is at the bottom and is a white toggle style switch

 

Cool, saw the switch. So....it looks like you used velcro on the tail gate, how is that holding up?

 

They send it with the Velcro, it's working great. No problems

 

I think I am going to pull the trigger on these

 

Final ?, which option did you go with on your truck:
Incandescent System (Includes one Bright Incandescent light system and everything needed for installation) for $ 29.95 USD
LED System (Includes one Super Bright LED light system and everything needed for installation) for $ 39.95 USD
Dual LED System (Includes Two Super Bright LED lights, one for each side of the pickup box and everything needed for installation) for $ 54.95 USD

 

Walton is running the Dual LED system. I ordered that one as well.

 

I was leaning that way as well!!!!!!!!!!!!! One last question, how are they powered? I sit on the tailgate enjoying some adult beverage in the summer and don't want to run the battery down

 

Have you considered reading the thread?