I need some lights

Change batteries often. Too many fecking people out on the road with lights that are barely visible because they're drained their batteries and just because they see a glimmer of an LED at home think it will be bright enough to keep them alive.

here's the thing - sometime you didn't notice that the batteries is nearly empty until it barely visible, there's countless time that I've forget that my light is usually brighter than it is, until I barely can see the road ahead is when I realise I need to change the battery.