Item Type: T8 sign tube lights – 4/5/6/8ft; Input Voltage: 85-277V; Lamp Luminous Efficiency: 100lm/w; Power Factor: ≥0.95; CRI: 80; IP Rating: IP44; THD: <20% Power input: single end & double ends (Rotatable); Light Source: LED 2835; CCT: 3000K/4000K/5000K/6000K; Lamp Body Material: High quality aluminium&PC(milky& transparent) Dimension: 1200/1500/1800/2400*26mm Warranty: 3 years Working Lifetime: 50000hrs Certification: CE, ETL, RoHS, SAA, ETC, DLC, UL; FEATURES & BENEFITS • Excellent efficacy & performance. • Long life & photobiologically safe LEDs. • High-performance electronic driver ensures zero maintenance. • No harmful UV & IR radiations. • Environment-friendly as it does not contain Mercury. • Instant light with low running temperatures. • Operating temperature: -20°C to +50°C.