Technical parameters: 1.Led light source:3528 smd 2.Viewing angle:120degree 3.Input voltage: ac100v-260v or dc24v 4.Dimension:1200*30mm, 600*30mm 5.Luminous:1950-2150-2350lm 6.Color temperature:3000k-4500k, 6300k-7000k 7.Life span>50, 000hours 8.Gurantee period:2 years 9.Operating temperature:-25-80ípc 10.Store temperature:-30-100ípc 11.Package:1pc/box Application: 1.Instead of the indoor ceiling light 2.School/universities/hopitial 3.Conference/meeting room, show room 4.Commercial complexes 5.Factories/offices 6.Super-markets 7.Rwsidential/institution buildings 1pc/box