Weifan through Amazon has the Xiaowu Qi Fast Wireless Charger in black, white, gold or red for $8.45 (19.99 – 11.54 coupon) for a limited time. To get the discount, use the coupon code: X6KTKJHC at checkout. Deal ends May 20, 2018.
The Wireless Charger works with all Qi compatible devices and will fast charge devices like the Samsung Galaxy Note8, S8, S8+/S8 Plus, Note 5, Galaxy S6 Edge Plus, Galaxy S7, and Galaxy S7 Edge. It features over-voltage, under voltage, and short-circuit protection.