I have a Lamp that is bright enough for 35mph offroad so it is bright and it has 3 settings on Brightness of the beam. On the road I rarely use the Bright setting as it only allows about 2 1/2 hours but it is great when I can use it. Shows everything ---except for those beasties just at the edge of the beam. For that reason I have a helmet lamp that looks round corners for me instead of just where the bike is pointing.
That "Second" lamp is a godsend.
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How long was I in the army? Five foot seven.
Spike Milligan