Sunco Lighting 10 Pack 4FT T8 LED Tube, 18W=40W Fluorescent, Frosted Cover, 5000K Daylight, Single Ended Power (SEP), Ballast Bypass, Commercial Grade - ETL & DLC Listed Top Rated T8 LED Tube Single Sided Connection with G13 Base &#9989; 2 FOR 1 - Convert to LED with Sunco for instant energy savings (up to 85%), 2 LED tubes do the job of 1 fluorescent! &#9989; COMMERCIAL GRADE - We uphold the highest standards for all our products by testing each product for optimal performance and safety. Certifications: ETL, DLC. Specifications: Length 4 FT / 48 IN, Frosted Cover, Color Temperature 5000K, Wattage 18, Lumens 2200, Voltage 120-277, Beam Angle 120, Shatter resistant, Flicker Free, Instant On, Eco-friendly (no mercury, no IR, no UV). &#9989; ETL CERTIFIED & DLC LISTED - We uphold the highest standards for all our products by testing each product for optimal performance and safety. Our T8 LED tubes provide instant bright light and no buzzing or flickering for maximum eye comfort. &#9989; SUNCO BENEFITS - 5-Year Warranty! Sunco is proudly based in the USA, offering quality products at affordable prices backed by industry-leading warranties and knowledgeable support specialists. Cover: Frosted Voltage: 120 volts Luminous Flux: 2200 lm Wattage: 18 watts Color Temperature: 5000K (Day Light) Input Voltage: AC100-277 without ballast 120 Beam Angle No UV or IR radiation. Can operate in very low temperatures  (-25F to 140F)