One of the biggest issues many cannabis growers face is dealing with heat extraction. Because LEDs increase environmental ambient temperature by only a º or 2, there’s less stress on the plants, and less expense dealing with heat. Without the stress caused to plants by excess heat, LEDs make growing easier for a lot of beginner growers. Its just one less issue to have to deal with. An LED grow lamp looks very different from an HID grow light. Whereas the latter looks like an oversized industrial light bulb capable of kicking out a lot of brightness and power (which it does), the LED systems are self-contained boxes full of tiny bulbs. Each grow bulb is small in area and uses integrated optical components to shape its radiation pattern and reflection. It is important to note the direction of the light plays a big part in its usefulness. LED grow lights emit light at optimum wavelengths.
A good LED grow light provides almost only the spectra of light that the plant needs, with hardly any wastage. In theory this means bigger, better plants.
LED grow lights produce virtually no heat. This means that less investment, energy & thought has to go into dealing with heat extraction. Assuming that your grow room is located within your home environment, you probably keep the ambient temperature at around the ideal growing temps.