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OREiN-US via Amazon [amazon.com] has 6-Pack OREiN Matter A19 RGBTW Color Changing Smart LED Light Bulbs on sale for $41.49 – $23.50 off when you apply promo code YDKIC74D at checkout = $17.99. 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.