will 3.6V instaflash surefire e1e bulb?

Yes it will blow it quickly however you do have a few options.....Lumens Factory sales a direct drop in that is designed to work with higher voltages and you may want to look into that option. I believe they have two different lamps with one rated at 90 lumens and the other rated at 50.

I have both and they are really a nice addition to the E1E
 
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