I think a kind of stupid question but will ask anyway.

Need to replace the bulb on my Hayward Astrolite SP0580. It is 500W

I took out the assembly and cord is long enough to work on deck.

I took off the metal ring that attaches the plastic ring to the casing that houses the light.
My quesiton is how do you take the lens off to get at the bulb?
I didn't play with it much and put everything right back because we were having guests over, but in the 2-3 minutes I was playing with it, didn't seem like it would come out easy and there was nothing to grip so I can easily pull out. The rubber gasket seemed to be in there really good.

Am I doing this right and just need a little patience or am I missing something simple?

thanks!
Al
-------------
20x40 - 30K gallons inground vinyl