... ISO9001,UL 2,5years warranty,OEM 3,Eco-friendly,energy-saving 4,80W electronic ballast,Fast delivery low temperature ballast low frequency 80W ... test and EMI Conduction Test 4.Passed one million times switch on-off test5.The distance between ballast and tube ... Ten years manufacture demand and theoretical design9.Provide five years quality warranty Working environment temperature: -35°C-70°C Working ...