Welcome to the world of reef keeping

I've used several types of lighting and pretty much narrowed it down to these options....
Premium Brands - Grow Most Anything
Kessil A80
*Kessil A160WE
AI Prime 16HD
Radion XR15 G5 Pro
Budget Fixtures With Selective Growth
*HIPARGERO LED Aquarium Light
NICREW Aquarium LED 50W/100W
KINGBO 18W LED Aquarium Lighting Bulb
*Fluval Sea Nano
There are a ton of other options but these are pretty popular IME
* Have personal experience with these lights.
I've learned my lesson and now buy things for "future proofing" vs budget thinking. The Kessil A160WE, AI and Radion for example are near overkill for a 10g but can be dimmed and will grow just about anything. If you go with a 20L or 40B in the future all you'll need to do is buy 1 more of any of these and you're covered. All the other options are iffy and you'll likely have to buy something completely different. I'm using a Kessil A360WE over a 5g nano at the moment but I know I'll be using it in the future on a larger tank once I move into my new home in a few months.
The question is, do you think you'll be upgrading in the future (many people do). That's the real question you should be asking yourself.