I inherited an Executive Elite E2E and have found that it burns through bulbs at an alarming rate. By that I mean maybe after an hour or three. It's pretty unpredictable. Is this normal behavior for surefire incandescents or should I try to seek warranty options? I don't know much about incandescent lights, but from what I've read, bulbs should last longer than this. Thanks in advance!
Further down in this discussion you mentioned that the bulbs were discolored, which is normal yet it can be exacerbated & shorten bulb lifespan by operating the light for a length of time with weak batteries
If I remember correctly(which I may not) the lamp requires a minimum operating temperature otherwise the tungsten atoms boiled off the filament will plate themselves to the inside of the glass envelope instead of back onto the filament, which shortens the life of the lamp.
In the old days we used to discuss "vampire" lights, LED lights that we used to drain the last bit of life from 123's from our SF lights, as it was standard operating procedure to swap out 123's at the first noticeable dimming of the light.
ETA: My favorite vampire light was a Streamlight Twin-Task 1L with the incandescent lamp removed with just the 3-LEDs remaining. An almost dead 123 will power this light for 5-10 hours or so used at night, as a find my way around the house light without disturbing vision too much.
So don't drain the Batts dry in a good incandescent lamps.
In my distant pass I use to issue Surefire E2e lights to my crew and have purchased over 15 of them. Only one guy ever had a problem with lamps going bad, not entirely sure why. I currently own an M6, M3, C3, P9, 3 - E2e's an E2W and a E1e and a couple of the original LED heads, only issue was with the M6 hi-output lamp exploding inside after about 5 minutes of runtime, lamp was powdered glass. SF replaced the head ASAP. Sadly they are all sitting in their SF boxes in a tub in the closet. The E2e was my all time favorite SF.