LED T12 T8 Tube Light. SMD LEDs. 1650 lumens. 100-277 VAC. 4 foot in length. Plugs directly into fluorescent 2 prong receptacle replaces standard F40T12 lamps. Remove existing ballast. Plastic tube housing. Lasts up to 5 years or longer. Humidity/moisture resistant. Available in white 6000 Kelvin. 17W. Comparable to a 40W fluorescent. The operating temperature is 100 degrees. Replaces standard fluorescent tube lights. There is no turn on wait for the tube lights. Great for business lighting, home lighting, accent lighting, or office lighting. LED T8 Tube Lights work in homes, offices, boats, RVs, buses, trains, for cabinet lighting, task lights, etc. Since you remove the ballast you save even more energy costs and replacement costs. UL, FCC, Rohs listed. Since the LED tube light is solid state, there is no waiting for the LED tube light to illuminate. Uses surface mount LED's. Power is applied to each end of the T8 LED tube. Greater than 75 CRI.