>>1577843If you just want to be seen, you can't beat wheel spoke lights-- they are extremely conspicuous. I've never used them myself, so pic related is just what I found when I looked for USB chargeable options.
Personally, I would look at the options from bikelightdatabase or outdoorgearlab and look at the company product pages to see what battery life you can get on the lower power pulse modes. This way, you would get the flexibility of having a light that actually works for illuminating roads when you need it, for just a little more money.
