Notoc via Amazon offers the Notoc GU5.3 MR16 4-watt (40-watt Halogen Equivalent) Spotlight LED Light Bulb 6-Pack in Warm White or Daylight for $16.99. Coupon code "XX4MVHXD" cuts that to $6.80. Plus, Prime members receive free shipping. That's $2 under our mention from last month, $10 off, and the lowest price we could find. Deal ends May 31.