This is a Triboro Model # F09410000004-M, 616 Series Threaded Outer Body Phenolic Lamp Holder / Socket.
This Socket is New Old Stock (N.O.S.) from a bulk case, with no retail packaging.
SPECIFICATIONS:
- UL File No. E11033
- CSA File No. LR11209
- Rated 660W – 250V
- Threaded Outer Phenolic Body with Standard Aluminum Screw Shell