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 ... cents per kWh, that equated to a $45 savings.3. Environmental protection: Reduces Air and Water pollution. Replacing a single incandescent ... of the light being generated. 4U energy saver lamp--JL-4U01