From the Philips HUE Family.

Enabled by Bluetooth or HUE bridge (for advance features)

 

Suitable for Track Lightings. (See options HERE)

 

Communication protocol

Control up to 10 bulbs (Bluetooth), 50 bulbs (Zigbee Bridge) 

Dimmable: YES (via app/remote)

Hours: 25,000hrs

Lumens: 250lm 

 

Specification:

Type of bulb: PAR16 LED
Input: AC 220-240V
Wattage: 5.5W
Lamp Base: GU10

White Temperature: 2000 - 6500K

Colour: 16 Million Colours 

All shades of white, from warm to cold colour temperatures
Dimming only via RF down to 5% (no external dimmer)
Beam angle –160° ± 20°

 

Warranty: 2 year carry-in.