What are you using to mount LED light strips under the rail of your bed?

 

I have these and they have an adhesive backing. They have stayed in place for a year now inside my topper. So I'm not sure how well they will stay in place exposed to the weather. Even if they don't stay stuck in place you could just buy some of the foam double sided tape to stick them back up.

http://www.ebay.com/itm/110748515449...84.m1423.l2649

 

Most of them should come with 3M automotive grade tape already on the back. If the surface is cleaned right, and relatively smooth, they won't go anywhere.

 

As op Stated the back is lined with sticky tape! Clean the spot you plan to stick them to Properly with alcohol, allow to dry then apply leds...

 

I attached these under the bed rails and then I attached my LED's to them. This way I,was able to bend the wall molding to the angle I want to direct the lights to where I want it.
http://t.homedepot.com/p/DONN-Brand-...SM7/100346094/

 

I pretty much did the same as Brucem609 , using Azack (composite board) ripped 3/4" strips at a 45 degree angle (so the lights pointed more towards the center of the bed)
To mount the composite to the underside of the rail I used velco strips