kessil 350 and 350w difference

[si reef]

Can someone tell me the difference with the two models kessil 350 and the 350 wide?
website i looked at shows same coverage 24'' diameter. tuna blue.

 

[reefwiser]

Here you go from the website:
A350: 18" surface radius by 4' to 5' penetration (on average)
A350W: 24" surface radius by 3' penetration (on average)

 

[si reef]

Thank you.