The Closeout Guys via eBay offers the refurbished Philips Friends of Hue Bloom WiFi LED Bulb, model no. 259945, for $34.99 with free shipping. That's $25 under the lowest total price we could find for a new one. This dimmable 12-watt bulb can be added to an existing Philips Hue bridge or other compatible bridge, which allows you to control your lighting via apps for iOS or Android.
A 30-day The Closeout Guys warranty applies.