For growing under LEDs you need special grow light LEDs, not the ones you use to light up your home.
They come in various colours mostly the blue+red variation (making your plants look purple), there are also full spectrum grow light LEDs which are rather close to white to our eyes.
Your "warm white" LEDs most likely give very poor results for providing the wrong spectrum. Good old T5 "daylight" fluorescent tubes are still popular as well with growers.