eCase via Amazon offers the Kmashi 15-watt RGB Color-Changing Wireless E27 LED Light Bulb with Remote for $15.99. Coupon code "8K52IESK" cuts that to $9.99. (Hkx-Power via eBay charges the same.) Plus, Prime members bag free shipping. That's the lowest price we could find by $30. It features four main colors (red, green, blue and white) and 12 lighting modes.