Leviton Screw Mount Lamp Support Clip for Horizontal Mount 2G11 Base Twin Tube Fluorescent Lampholder, 23452-B

Bulb/tubes snap in easily and tightly. Nice.

I had to modify the mounting. The description and picture showed the base had a screw fitting integral to the base. What I received had a hole and I had to get a screw and nut to mount the clip.

Leviton make the best components used in the lighting industry. If you are just fixing, designing an electrical product, them Levition is the place to buy components. You can find all Leviton products at Amazon.com.

Seems expensive for a small piece of injection-molded plastic...