Save 20% on four TP-Link Kasa smart plugs during Prime Day

[Windows Central]

Get four TP-Link Kasa Lite smart plugs for just $39.99 when you clip the 20% off on-page coupon only available for Prime Day. That takes $10 off the regular price of the 4-pack. Considering one smart plug goes for $18 and the two-pack usually goes for $30, you're getting a lot of value out of this deal if you need multiple smart plugs.
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