I wish you'd send some rain over this way Phil, it's not dropped below 35c in the day for the last 2 months here
If you want another 18650 light then the SC600 is certainly worth a look.
Not to impressed with ZL as a company as their after sales "service" is terrible, but they do keep making great lights though.
Careful with the AA lights.
I recently bought 2 x H502's 1 the normal tint the other the H502d, thing is though with normal AA batteries the torches are not as bright as with either my Eneloop's or my non rechargeable lithium cells.
With modern emitters it's difficult for normal cells to provide enough juice.
So don't buy a new AA torch automatically thinking it will work with at it's highest setting with all your AA cells.