I just went to Super Vision's show room where they have the older Galaxy LED light and the newer SAVI LED light. There is quite a difference in quality between the two lights, the main difference is that the SAVI light is a much smoother looking light, you cannot see the individual LED's like you can see in other LED lights also the SAVI has a much wider beam of light so the light broadcasts further across the pool, lastly the SAVI light is noticeably brighter. The Pool SAVI light is the size of standard spa light so if you had a standard pool niche in your pool currently you would need to purchase the RetroFit Plate to adapt the smaller SAVI light to your pool niche you may view the SAVI lights and the adapter plate through this link http://www.inyopools.com/lights_savi.aspx