last night I borrow M1 from my friend, drive my SUV to find out some road without street light.
whether conditition: after the rain:twothumbs
The distance between child and light source about 25M, and the wire pole around 40M
160 Lumin collimator lens (10 deg) VS M1
Torch:
M1
Torch 160 Lumin with reflector VS M1
Torch
M1
basicly, if you can not see the child head, the child can clear to see you.
if you can see the child head, the child is blind
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mount 2 M1 at my SUV
light output 30-40M
M1 off
Left M1 on
right side M1 on
both M1 turn on
not bad!!
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find some place to stop my SUV
the distance between M1 and my SUV around 20 M
M1 off
M1 light output cover whole SUV, child is blind
M1 light output angle adjust to not exceed the hood of SUV
child still can see whole M1, not blind
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M1 light spot 25-30M
M1 off
M1 on
M1 adjust light beam more high
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the photo that I take in last night just for you reference
My opinion is, Basicly, M1 light output can not exceed 2 high power torch or some thing simular.
But I think the point is, just like you drive a car, you don't like other driver blind you with high beam. use torch as bike lamp, just like you drive a car always switch to high beam mode.
in downtown, even you don't have the bike lamp you still can see the street road and can ride the bike at night(little danger). (at least in Taiwan, too much street lamp)
But if your purpose is mountain bike off road, like my SUV. you may need high power LED array, you should carefully to see all direction not only in front of bike but also the tree, tree branch and stuff at tree branch.
Some people ask what is the best bike light, I said depends...
road bike, M1 is better than others, not blind other rider.
mountain bike off road, high power LED array or multi-high power torch is better.
city bike, regular LED bike light simular like tail lamp. your light output can not exceed street lamp, so just remind other rider, you are there and your are coming.......
M1 constant current and cut-off line design is quite different than others.
M1 is quite good but quite expensive:twothumbs