This is the cheapest grow light I can recommend. UOIUXC Quantum Board If you are already using these lights and seeing yellowing- it is not from having too much light. Something else is wrong with them.
Uoiuxc 1000 watt Led Grow Light with Chip & Mean Well Driver, Grow Lights for Indoor Plants Full Spectrum 110W Sunlike for Veg Flower Indoor Plants https://www.amazon.com/dp/B08B841G7W/ref=cm_sw_r_cp_api_glt_fabc_DT9KWWJ8YH2RCXGCCSZR?_encoding=UTF8&psc=1
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.
This is pretty cheap. It's an off brand that uses the Samsung chips and a meanwell adjustable driver. Would be enough to bring one or two plants to harvest.
You could easily spend a lot more on cfl bulbs alone.
This is all you need if you’re on a budget and an extra 10% off.
Uoiuxc 1000 watt Led Grow Light with Samsung Chip & Mean Well Driver, Grow Lights for Indoor Plants Full Spectrum 110W Sunlike for Veg Flower Indoor Plants https://www.amazon.com/dp/B08B841G7W/ref=cm_sw_r_cp_api_glc_i_v1q2FbN6R2ETA
Oh man link me! I have a VERY limited space and the Cree COB (100 watt equivalent) has given me some frosty nugs but not the most weight. Heat is an issue as well. I have this one on order as it has Samsung diodes and mean well driver for cheap comparatively: Uoiuxc 1000 watt Led Grow Light with Samsung Chip & Mean Well Driver, Grow Lights for Indoor Plants Full Spectrum 110W Sunlike for Veg Flower Indoor Plants… https://www.amazon.com/dp/B08B841G7W/ref=cm_sw_r_cp_api_fabt1_OKORFb73D8PF7
Ah haha,
Pick your container.
Light: Probably similar to theirs, but this probably has better diodes $80 (https://www.amazon.com/Uoiuxc-Samsung-Driver-Spectrum-Sunlike/dp/B08B841G7W/ref=sr_1_43?dchild=1&keywords=led+grow+light&qid=1605816996&sr=8-43)
Fan/filter: 4" fan and filter combo $70 (https://www.amazon.com/iPower-Inch-195-CFM-Inline/dp/B08BF5GWKZ/ref=sr_1_6?dchild=1&keywords=4%22+carbon+filter+fan+kit&qid=1605817065&sr=8-6)
Those are the two most expensive pieces other than the box itself.
Everything else is an under $20 item.
I would recommend one with the MeanWell driver atleast.
https://www.amazon.com/gp/product/B08B841G7W/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
Haha probably right 😋 Its a Uoiuxc board, I've had it for a couple weeks when I first brought these girls inside. No complaints and they've been loving it.