The 426 reflector cone allows you some flexibility--not only with the type of bulb you use, but also in terms of appearance. You can order custom trim rings, too: the TRM6 line offers you a variety of finish options, and if you cut your opening too large, the oversize trim ring (#OT403) can cover up your mistake. Includes coil-spring retention.--Josh Dettweiler
The 426 reflector cone allows you some flexibility--not only with the type of bulb you use, but also in terms of appearance. You can order custom trim rings, too: the TRM6 line offers you a variety of finish options, and if you cut your opening too large, the oversize trim ring (#OT403) can cover up your mistake. Includes coil-spring retention.--Josh Dettweiler
What's in the Box
Reflector cone, coil springs