The Atmosphere  AR111-G2C is based on our normal G1 but change the anti-glare plate to a G2 like shape. It has a dim to warm chip built in it and is dimmable same as halogen. We have do several test and it can compatible with many dimmer in the market. 
This is a perfect solution to replace your old halogen. 
The atmosphere series lamp provide you the light that can simulate the sunset, creating relaxing mood in your space.