It can keep constant temperature while adding heat to the chicks, simulate natural sunlight, promote the absorption of calcium, enhance immunity and resistance to infectious diseases. 🔥【upgraded Chicken Coop Heater】：TFNN Chicken house heater lamp has 8 full-light bulbs, 12 UVA bulbs (365nm), and 4 UVB bulbs (UVA: 310nm + UVB: 395nm).