Just got my Phase 7 headlight today to install in a Fatboy headlight bucket. It seems to be a loose fit and the LED lamp has play. Tightened the 3 screws on the inner ring and tightened the trim ring as well but still feels loose. The stock bulb I took out fit perfectly with no play. Any suggestions?

 

My LED headlight required the use of a rubber piece to tighten it inside, are you sure yours did not come with one ?
At first I thought it was used to secure it inside the package and did not install it, at first 'stop sign' the vibration of the light , freaked me out, came back home, tried to insert the rubber piece, et voila... it worked like a charm

 

My aux. lights were like that.
They came with four strips of what looked like peel-n-stick weather-stripping.
Once I figured out what they were for (the instructions for whatever reason made no mention of them), they fit nice and tight.

 

Ah, that's probably what I get for buying the Trucklite version and not the Kuryakyn one! No rubber pieces in the box. It looks like the tabs are just a tad bit smaller than the notches in the headlamp housing so I'll just find some rubber strips to make it fit tighter. Thanks!

 

My Trucklite headlamp and auxiliary lights fit just fine...

 

Kuryakyn and Trucklite phase 7 LEDs are one in the same.
If you look under the title it says "by trucklite"
http://www.kuryakyn.com/Products/420...-Passing-Lamps
I would just give them a call and tell them that it did not come with the required rubber gasket