Before responding I must admit I am a total kessil fan boy. Just bought 2 more but here is my perspective.
These lights were designed for public aquarium applications where WiFi is seen as a deal breaker. The light is reasonably priced compared to its other 180w competitors. Radion XR30 is 839.99 while A 500X is 739.
This means the price of a light plus the WiFi dongle is equal to the competition. If you have 2 or 3 lights then the kessil is cheaper than the competition because you only pay for the WiFi once.
Why would you buy kessil over the competition?
- Better spectrum
- Easier control interface
- Better shimmer
- Prefer wired control
- Prefer only 1 wifi signal for a string of lights
- Neptune integration is now in public beta testing making kessil the only apex compatible high end LED for now
- Preference for mounting lights high and out of the way.
- Best option for deep tanks given the narrow lens
- Best spectrum blending