Customer’s impression:
Ultrafire WF-501B CREE XR-E G2 150lm Green LED Fla
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  • Brilliant signalling in compact, versatile WF-501B

    posted by brdenver on 04/12/2011

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week


    - Great feel in hand

    - Compact

    - Bright Green LED

    - Good penetration in fog

    - Visible 1km in clear night

    - Visible 400M in daylight

    - Easy to modify

    - Solid case

    - Fits perfectly to the SKU 01375 "Large Flashlight Holster 2-Pack"

    - Durable, well built shell, no rattling

    - REALLY smooth thread on the battery insert section.


    - Battery life (consequence of the size and brightness)

    - Only 1 o-ring on the green one I recently bought

    - Would prefer red button or some external indicator of colour as I use these in conjunction with blue, red and white variants of the same model.

    - Difficult/nearly impossible to modify the tail


    OK throw and good flood for such a little light. Modifications we made to one green and one red included glass optics, reflector and crown to make a thower. Red spotlight not as useful as having the flood through fog for attention, but added a lot of distance for signalling. Looked very cool as well (you've seen Starwars, right?).


    Less than $10 for a WF-501B. Great deal!

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