Philips announced to unveil A21 LED for replacing 100W traditional bulb in December.
 
Similar to AmbientLED/EnduraLED family in shape, the A21 LED has outstanding performance in power consumption and luminous efficacy. The lamp consumes 22W, puts out 1780 lumens, operates at warm white (2700K), and is rated for 25,000 hours of life. It’s dimmable and has a CRI rating of 80.
 
One important detail to know about the bulb is that it’s an “A21″, which refers to the shape and size. A standard, household bulb is an A19 which is 2.375 inches in diameter, while A21 is 2.625 inches. That might not make a difference most of the time, but it will in some fixtures. The new model is considerable taller than a standard Philips LED bulb as well, at about 5 inches (including the socket). Philips also used the A21 size with their 17W, 1100 lumen (75W-equivalent) LED bulb.