TopperSun via Amazon offers the Minger 60-watt Equivalent Light Sensing Dusk to Dawn LED Light Bulb 3-Pack in Soft White for $19.99. Coupon code "LHE4GTGM" cuts that to $13.99. Plus, Prime members bag free shipping. That's a buck under our May mention, $6 off, and the best price we could find. They feature a 600-lumen output. Deal ends July 22.