Select:
FXL 82V (rated life 75 hrs)
FXL 86V (rated life 150 hrs - 15% lower light output)

FXL 410W 82V Halogen Lamp
MR16 Dichroic Coated Reflector
GY5.3 2-Pin Base

Focused Beam for Optical Applications:
Projectors

Technical note: to get longer bulb life, the 86V FXL bulb can be substituted for the standard 82V FXL bulb if slightly lower light output is acceptable.

Topbulb ships premium quality FXL bulbs manufactured to the precise specifications as established by the American National Standards Institute (ANSI).

What are the manufacturer product code cross references for FXL bulbs?
Osram Sylvania: 54912 (FXL)
Philips: 23030-0 (FXL)
GE: 21613 (FXL)
Ushio: 1000636 (FXL - JCR82V-410W)
Eiko: FXL/5

What is an MR16 halogen lamp?
MR refers to the type of reflector - multifaceted pressed glass reflector. 16 designates the approximate diameter of the reflector in 1/8" increments: 16 x 1/8" equals 2". A halogen capsule is the light source located inside the MR reflector.

What is a dichroic reflector?
Dichroic reflectors reflect visible light forward while allowing the invisible infrared light (radiated heat) to pass out of the rear of the lamp. This helps keep the beam of light "cooler".