Energy saver lamp-JL-4U01 1.Life span:8000hrs, 2.Color temperature:6500K, 3. ... :CE,ROHS 4.Warranty:12month 4U shape energy saving lamp-JL-4U011.Life span:8000hrs,2.Color temperature:6500K,3.Certificates ... amount of the light being generated. 4U energy saver lamp--JL-4U01