Hey Ahxnccj, nice to hear from another Locator owner. I did the same thing with my Locator and observed that the fixed reflector on the 5000K bulb paled in comparison to the stock Locator reflector. I stockpiled a bunch of GE Marc 300 EZS bulbs - even though they are 3300K just so I'd have bulbs for a long time since they are 25 hr to 75% brightness, short life bulbs. Wish I could find a cashe of the original military issue, 5500K bulb.
If you ever desire to sell your Locator, let me know.