BESTSUN 800 Lumens High Intensity LED Flashlight, Black No wifi, internet or router are needed, the bulbs can be easily controlled by BLUE TOOTH Each light bulb is tested for 24 hours at the factory to insure quality, and then individually tested again stateside to minimize the chance of a defective products also has a 2 year warranty; The light bulb works on most dimmer switches and touch lamps, just make sure to set the dimmer to 100% when using the Bluetooth bulb for smoother performance, to dim use the iPhone application; Designed with quality components and heavy duty Aluminum heat sinks the LED bulb has a lifetime up to 20x longer than incandescent with up to a 90% decrease in energy usage saving you money on energy and bulb replacement costs; Efficient LED's and 7W of power, the light bulb provides light equivalent to a 40-50 watt incandescent bulb, 50% more than most colored LED bulbs available or around 600 lumens. A durable dome top diffuses the light evenly and provides pleasant lighting throughout the room while eliminating the dangers of hot glass or shattering;