Thumb Score: +15

Yinbakeji via Amazon [amazon.com] has 2-Pack Tommax USB-C Rechargeable LED Bike Tail Light w/ 5 Modes & 10H Runtime on sale for $13.19 – 50% off when you apply promo code 6I3IXKPZ at checkout = $6.59. Shipping is free w/ Prime or on orders $35+.

Note: Amazon promo codes don’t always apply seamlessly. If you run into this issue, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.