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LINKIND-US via Amazon [amazon.com] has 4-Pack Linkind Matter WiFi Smart RGBTW LED Light Bulbs w/ Remote on sale for $33.99 – 50% off when you apply promo code FEYZE84G at checkout = $16.99 ($4.24 each). 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.