Big advantage of getting a respectable light is that you can use it off the bike as a torch.
Obviously you will not need a powerfull lamp for the front but a Halogen will give a better light than an LED for home use.
And you will be able to check over the roubaix for thorns in the tyres-They stand out a mile. Another bit that stands out a mile when the light comes from adfiffernt angle are those bits of dirt you missed when polishing the frame.
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How long was I in the army? Five foot seven.
Spike Milligan