1.Operating frequency:250KHZ 2. 5YR warranty 3.lifetime>100000h 4.Ra>80 Product DescriptionOur company is a biggest & professional manufacturer focus on Low frequency induction lamp ( warranty 5 years, energy saving 40~50%) & induction fixtures in China, including street lighting, high bay lighting, Flood lighting, tunnel lighting, office lighting, grow lighting, etc. Advantage of our product-- ...