Brightness great/ focus a little off / sleeve unnecessary

This LED upgrade to Maglite was super easy to install, just unscrew the sleeve on Maglight holding bulb and substitute this one. Took all of 2 minutes. That being said, I'd prefer if they sold it without supplying a duplicate sleeve since the existing one works fine, and cost could be reduced. Also since the LED produces a "spot" source of light, turning the head on my old Maglite does change the focus of the beam, but not in the same way as the original incandescent bulb. So, there is an outer "halo" all the time and a more empty spot in the middle at points of the focus.

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