Lower price: $11.89
Bike Headlight 500LM Adjustable Flashlight and Taillight Kit
Free shipping
A Q5 led will not last very long when it is driven to 500 lumen…
And a tail light with CR2032 batteries won’t be very bright (if it is bright, you will need a lot of CR2032 batteries).
It is not a good deal, the “before price” is much too high.
Thank you very much for posting, and I respect your personal views, I just posted this deal to share. 
(I tried it and its bright enough)
It’s nice it comes with a tail light and with batteries installed. Definately better than nothing. Thanks for posting:)
thank you so much, I appreciate your comment.