Need a new pool light

Currently have an old Hayward SP0555 which needs to be replaced.  Have been told by our pool man that I should get a Hayward SP0580.  Can anyone confirm before I place an order which potentially may be incorrect?

Hi MrTeddy, The SP0555 is the niche or can that the light fixture goes into, so I assume you will be keeping the niche and just replacing the light fixture? If so you will need this light here Hayward Duralight unfortunately Hayward does not allow for this light to be sold through the internet and must purchased through a pool builder / service company.