Enery Saving Lamp Tri-Color PBT socket with fire retarded property ... 6 incandescent lamp2. lumens maintenance: The luminous flux keep at least 80% of initial levels, after 2,000 hrs' ... , 3U, 4U, half spiral and full spiral5. Optional color temp.: 2700K, 4200K, 6400K6. Optional lamp base: E14, E27, E40 and ... )Luminous Flux(lm)Length(mm) Broad(mm)Lifetime(h) Lamp base Volt(V) CRI(Ra) Qut(pcs) YPZ220-5 ...