Dude you need 3000K cobs or pcbs with good led diodes, they don’t need to be for growing specificaly, all those leds emit true full spectrum. Cbx3590 cobs are the best as far as spectrum goes but a 3000K and 80+ Cri cobs will get the job done, you can look up the datasheet from the internet and most of these lights have relatively same spectrum. For pcbs, samsung 561s are what quantum boards are based on but again, there are many pcbs, plug and play and they have good spectrums, you just have to look at the datasheets of those specific chips and compare it to the samsung 561 and cbx3590 and closer you can get is better, or if you can just order 2-3 cree cbx3590, heatsinks and drivers. It will emit less infrared so less heat to deal with than hps which is good for a small space.