LHKNL HOME via Amazon has for Prime Members: 2-Pack LHKNL Rechargeable Waterproof Headlamp Flashlight on sale for $15.19 - 8% off when you visit the promo code page to activate (or apply code 4NKSZSSC at checkout) = $13.97. Shipping is free.

Thanks to Deal Hunter Navy-Wife for sharing this deal.

Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.