Limited time deal. Amazon with Linhai Caiyuan has the EEW 132' 400-LED Voice Controlled LED Christmas String Lights (Warm White) for $20 - 45% off with coupon code 6JWEKMPA at checkout = $11 with free shipping on $35+ or with Prime. 

Also available in Cool White or Multicolor for $12 after code 6JWEKMPA.