LEDs have plenty of light if you have a good one. LED is a different type of light and unless your setup with exhaust fan and everything for an HPS it would shock your plants with the different type of light and the heat that an HPS would put off. Also your really can't compare and LED and an HPS they both have there pros and cons. If you want good quality potent buds then LEDs will give you that, more resin production and great taste. If you want quantity then run an HPS setup. Not saying that HPS will lack quality but everything I have read on LEDs that are made right with proper wavelength gets you a higher quality.