Newegg offers the GuniLamp Sky Lantern 7-watt E27 Bluetooth LED Light Bulb, model no. L011-8801, for $39.99 with free shipping. That's tied with our mention from last May, $30 off list, and the lowest total price we could find. This dimmable light bulb features 160 lumens of brightness, color changing, sleep mode, and iOS and Android app control.