Krypton Bulb Replacements

[Tennessee]

I have a Rayovac headlite with a Krypton K4SB-2 bulb, but as dim as this bulb is, I find it hard to believe its a krypton. Is there a brighter screw-in type bulb I can replace this with? I need long bulb life, since I use these for caving, so overdriving is not an option for me. Or better yet, can this lamp be modified so that a K13, KPR113 or equivalent bulb will fit? I want to stick with incandescent bulbs, and not switch it to an LED.

 

[DavidW]

Try halogen. A little searching can find the right bulb.

www.donsbulbs.com and www.caves.org/imo are good places to look.

www.reflectalite.com would be harder to order from but is a good reference sight.

Also the Petzl 4 cell headlamps use a screwbase and have halogen bulbs.

 

[Charles Bradshaw]

C. Crane has 3 white LED for 3 and 4 cell Petzl (E10 aka candalabra base).

http://www.ccrane.com/

Don't know if it is the right type or not, since I am not familiar with your headlamp or the bulb, for that matter.

You could always upgrade to a Petzl Duo or Duo Belt. At:

http://www.caves.org/imo/frames1.htm

They have a selection of them, including one for caving helmet mounting.

 

[Tennessee]

Thanks, David. It looks like Petzl's 6V halogen will work. That price though... $7... ouch! Do you know what the bulb life is?

Charles, I've been eyeing the Petzl Zoom Zorabelt. It's about $29 now. If it was only me, I could afford it. But I've got to equip me, my wife and two children, and I can afford $32 a lot easier than $120. Maybe some day...

Oh, and I've modified a Rayovac 3-in-1 to use 3 Nichia 8000mcd white LEDs (someday I'll put how I did it on the web and link it here), and it just isn't bright enough. I want to stick to incandescent for my main light, and keep LEDs for backup lights. I need to play around with overdriving the LEDs to see if the brightness improves...

 

[Mutie]

I just recently bought a Rayovac Industrial headlight that also takes a screw base bulb a KR 4.8v 0.5a was the only marking on it. I tried puting a Petzl 6v halogen in it only to discover that the threads are different and that I can't interchange bulbs with the Petzl.

Even though this light is very close to the Peztl and is only $11.00 it's biggest shortcoming is the belt attachment and the strain relief on the battery pack. Mine has broken the wires inside the battery pack twice now from the battery pack sliding up and off my belt and dropping all it's weight on the strain relief. If you are using this light for caving I highly suggest that you make sure it will stay secure because it only takes once or twice for the wires to break inside. Anymore I just put the battery pack inside one of those waist bags with some foam rubber padding.