When cycling, visibility is very important for safety which is why I use bike lights even during the day.
Higher powered lights are needed for daytime. The lights I used were over half a watt. I used multiple lights for extra visibility and redundancy. In the day, it’s better to have them flash and at night, it’s better to have them at a low or solid setting.
You can get those lights at your local bike shop or Amazon. They are either powered by a built-in Li-ion battery, AA, or AAA batteries. For the last two, you can use rechargeable batteries. I recommend precharged batteries because they hold their charge longer.
Since my bike ran out of space for the lights, I installed custom seatpost and handlebar extenders. With extenders, you can also space the lights further apart by mounting one on the left side and one on the centre or right to give drivers a better idea of the outline of your bike. Having lights on the left improves visibility too. You can expect improvements in passing distances. Left sided panniers and trailers can improve visibility too.
My helmet has a DIY self levelling mount for its rear so that it will point straight even if you tilt your head up or down. I built the mount because for some reason, bike stores don’t have helmet mounts for high powered rear lights. You can easily make one at home. If you want, you can vote for me in my Instructables contests.
I’ve taken pictures of my bike light setup with and without the lights on. It may seem like an overkill but I believe that we should be more visible and be seen miles away which gives drivers more time to react.
Rear bike lights:
- Cygolite Hotshot 2W USB (mounted on the left)
- Portland Design Works Danger Zone Tail Light (mounted on the centre)
Front bike lights:
- Planet Bike Blaze 2W (mounted on the left)
- Custom high powered front lights with side lights (mounted on the left)
Front helmet light:
- Planet Bike Blaze 500 XLR (helmet mount sold separately)
Rear helmet light:
- Planet Bike Superflash Turbo LED Rear Light
I would recommend using bike lights in the daytime for improved visibility.