Amazon 上现在有 Sengled 智能彩色灯泡，原价 $14.99，部分用户的账户可以实现 $0.99 甚至免费。
购买地址：Sengled Smart Alexa Light Bulb
首先在页面上有额外 15% off 的折扣，点击选上，然后结账用折扣码 “ALEXA”，如果你的账户有这个优惠，就可以实现免费：
这个优惠要求是 Prime 会员，点击这里试用 30 天（学生可以试用 6 个月）。
HT：The Krazy Coupon Lady
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