If you want to do LED lights, the highest value thing on the market (if you have Amazon Prime) is this guy, as far as I know. I have two set up since the middle of Spring, once I realized even my southern windows weren't good enough for indoor starts. I'm getting two more so that I can do more indoor starts and maybe some hydroponic greens over winter.

The thing with LED grow lights is that there are a lot of crappy ones. I don't know everything about the grow light market, but I have a rule of thumb: if the product doesn't list the output in PPF, PPFD, or PAR, it's probably not worth buying. That's not to say there aren't exceptions in both directions! I also look for the power supply. Some products have the actual make or model listed, some just include it in photos. If there's no power supply in view, or none included in the product (there are millions of USB powered lights on Amazon), it's also likely to be garbage. I don't think you can get a good LED grow light for under $50. The basement bargain ones sometimes hit $50-60, like the one above. You can probably beat that price by buying a constant current LED driver and chip-on-aluminum LEDs separately and soldering everything yourself, but that may or may not be worth it to you.

Long story short, I have had exactly one brand of aluminum PCB grow light for a few months and I don't expect to find anything better for my purposes. A bunch of LEDs soldered to an aluminum PCB and a fairly chunky constant currant power source seems to be the ticket.