ATC LLC via Amazon offers the ANNT LED Moving Night Light for $19.99. Coupon code "BN9FRTDX" cuts that to $11.99. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise it costs an extra $6.76.) That's $8 off list and the lowest total price we could find. It features fingerprint touch and a 2,200mAh rechargeable lithium battery that can last up to 50 hours (on its weakest setting). Deal ends December 18.