I have the 1st gen SC600 since it was released back in 2011 or 12.
It has served me well all these years, and has never give me any problem whatsoever.
If you want the SC600, rumour has it that the version3 will be launched soon, so you might want to hold your horses first.

The SC52 is the old model, and the new model, the SC5, has a max output of 500 lumens.
The thing with ZL is you are paying a premium for their brand.
No doubt it is a true workhorse that seldom goes wrong, but if you're not using it as your daily beater, something cheaper might serves your better.

But if your heart is already set on ZL, just go for it 

u want flood? fenix e05, but its AAA.

I have the 1st gen SC600 since it was released back in 2011 or 12.
It has served me well all these years, and has never give me any problem whatsoever.
If you want the SC600, rumour has it that the version3 will be launched soon, so you might want to hold your horses first.

The SC52 is the old model, and the new model, the SC5, has a max output of 500 lumens.
The thing with ZL is you are paying a premium for their brand.
No doubt it is a true workhorse that seldom goes wrong, but if you're not using it as your daily beater, something cheaper might serves your better.

But if your heart is already set on ZL, just go for it 

I might be a bit late to talk about Fenix E20 or E25 but the Thrunite Archer 1A V2 or 2A V2 is a killer over these Fenix lights.
Fenix recently had an issue with their poor anodization. I would trust the Thrunite over Fenix for its durability and mode spacings
I forgot, have you considered Olight S15  

honestly I'd just tape scotch tape to make a full flood mule light if ever needed but the flood on zebralight are generally wide and useful for walking distance so it's ok.

ya, thats what i told him...put a diffuser on.
plus no idea what his usage is for also.
if want to flood also zebralight just ok only, from 2m distance maybe the beam about 2m wide with mostly hotspot.
while my tk09 with diffuser can flood much better.

the ea11 also floods just as well as the sc52, but with a tighter hotspot...but of cos thats at nearer normal walking distances.
when go to 20-50m out, the sc52 has a very obvious much wider beam...
while the ea11 can still light up stuff up to 100m or more away with stated specs of throw up to 190m...
the sc52 doesnt reach that far...if not mistaken its max throw only around 90m? at that range its just barely picking up much...let alone light stuff up.

anyway, the day nitecore releases an ea11 or similar with warm / neutral led...is when i will sell off my sc52...til then i'll just keep both

You will need a Li-Ion charger to charge IMR14500.
Your Eneloop charger is for Ni-MH battery only.

To get max 900 lumens from EA11, you will need IMR14500.
Eneloop will only give you 160 lumens, as per their specs.

For SC52, light output with 14500 batteries are the same except that the H1 is 535 lumens for the first minute and then step down to 300 lumens, while Eneloop starts at 300 lumens.

Nitecore EDC33, definitely a good light. The 4K lumens is only temporary due to its size. The real performance is 1k lumens. Build quality and heat management is good, Nitecore has improved on the ATR (Advance Temperature Regulation) for these series too. Note it has a very strong pocket clip. Check out reviews on Youtube.