For those of you that want a cheap alternative to the plug-in bunk lights: The DW and I have been using these cheap battery operated Harbor Freight LED lights for our bunk ends. They have two light sources, a magnetic base and a hook. You can use the hook to hang the light from the bunk support pole or use the magnet to hold it there. We keep a few of them in the pup and did not have to replace the batteries the entire summer. Harbor Freight has free coupons out now (good thru 03/31/2018, but they produce new coupons every month or so). HERE is a description.