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Cateye VOLT500XC
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high intensity white LED X1

93.1 x 30.3 x 40 mm

95 grams

bar-mounted

Micro USB 2.0 rechargable Li-ion battery:
  3.6V 2200mAh
  charging time 6h
  cannot shine when charging

500 lm - run time 2h
100 lm - 14.5h
500 lm flashing & 100 lm constant - 12h
100 lm flashing - 120h (!)

Note: Flashing modes are annoying/disruptive
      IMO, maybe for the rear light which you
      don't see, to indicate a moving object.


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fisheyes
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white or red LEDs

bar-mounted

15g with batteries

batteries 2*3V CR2032


-----------------
pocket bike light
-----------------
<incal> another solution that I'm super-happy
        with is the micro-USB-chargable bike
        light I use as a pocket flashlight!
        it is so light and small
        (50g, 83x81x26mm), I don't even feel it
        in my pocket. at full capacity, 1m from
        a smartphone with
        "Smart Tools Smart Luxmeter 1.0.1" the
        light is 200lx. thru the years I've
        accumulated many flash- and bike
        lights, and I tend to have them on all
        places I frequent. I think I'll still
        do that but to always

<incal> have one in the pocket is a good
        feeling and sure elevates one's game :)

<...> photo? :D

<incal> OK, I'll get one. it isn't an expensive
        or flashy (ha) product tho

<incal> https://dataswamp.org/~incal/swamp-imgs/pocket-bike-light.jpg