I bought the AA version of this for my kids bike. The rear light is not that good. But the headlight is GREAT. Super bright – and can see my kids from a 1/2 mile away easy.
USB is likely much better. I have name brands – Cateye is defintently slightly better quclity wise. But for this price, I was impressed. USA based company vs offshore knockoff junk we usually see here. Nice stocking stuffer and keeps your kids (and ourself) safe.
https://www.amazon.com/BLITZU-Rec…ZMEXZMR56