Princeton Tec PT-40?

[metlarules]

With all of these new lights out I was just wondering. Does anyone still use these? If I put a Radio Shack hpr50 bulb in it will it distort the lens or reflector?

 

[mdocod]

Re: Princeton Tec P-40?

I use an HPR50 in my tec40 on 4 NIMH cells, works fine

Eric

 

[metlarules]

Re: Princeton Tec P-40?

How long is the runtime?

 

[metlarules]

 

[horizonseeker]

i have a pt-40 with extra lamp assembly and a red (night-vision) head, I'm not using it since my experiment at "hot-wiring" it never went too well.

 

[metlarules]

Wanna get rid of it?

 

[mdocod]

never really tested the runtime, on NIMH it should theoretically be somewhere in the 2-3 hours range, can't recall exactly how much current that bulb runs at. On alkaline, much less "bright" runtime, but probably similar overall runtime with a lot of it being very dim.

 

[metlarules]

Is there an easy way to change out the bulb on this light? It seems the assembly is all made into one.

 

[Hooked on Fenix]

To change out the bulb, unscrew the head of the light. Take out the reflector assembly. The shiny reflector part comes off from the black battery contact part. You have to pull the two halves apart. They are held together by two raised dimples, one on each side of the assembly. Once you get the halves separated, you get to the bulb held in by a spring. Take out the bulb without touching the glass and replace it with a new one. If you use a new bulb with a solder blob on the side it will be more of a pain to get it in and out as you'll have to hold the bulb while spinning the reflector. By the way, the bulb I liked to use the most in this light was a 4 C/D Xenon maglite bulb. I'd say it's around 100 lumens. The Xenon bulb is 50% brighter than the Krypton bulb and uses the same power. I got around 2 hours with good NiMH batteries. I think the bulb draws 1 amp. That's 5 or 6 watts.

 

[ZMZ67]

To change out the bulb, unscrew the head of the light. Take out the reflector assembly. The shiny reflector part comes off from the black battery contact part. You have to pull the two halves apart. They are held together by two raised dimples, one on each side of the assembly. Once you get the halves separated, you get to the bulb held in by a spring. Take out the bulb without touching the glass and replace it with a new one. If you use a new bulb with a solder blob on the side it will be more of a pain to get it in and out as you'll have to hold the bulb while spinning the reflector. By the way, the bulb I liked to use the most in this light was a 4 C/D Xenon maglite bulb. I'd say it's around 100 lumens. The Xenon bulb is 50% brighter than the Krypton bulb and uses the same power. I got around 2 hours with good NiMH batteries. I think the bulb draws 1 amp. That's 5 or 6 watts.

I also like the Mag Xenon it seems to have less artifacts than the stock or common krypton bulbs.I have been able to overdrive a 3-cell Xenon with alkalines but I think that was lucky other attemps resulted in
I wonder if NiMH batteries would work overdriving the 3 cell since they have a lower voltage?Has anyone tried?

 

[ZMZ67]

I also like the Mag Xenon it seems to have less artifacts than the stock or common krypton bulbs.I have been able to overdrive a 3-cell Xenon with alkalines but I think that was lucky other attemps resulted in
I wonder if NiMH batteries would work overdriving the 3 cell since they have a lower voltage?Has anyone tried?

Tried 3-cell Xenon with NiMH batteries but no luck.
:shrug: