Used in commercial buildings, 14 W plug-and-play Helen Lamp T8 installs within seconds into existing fixtures – troffers, pendants, and shop lights – and is L70-rated to 50,000 hr. Existing Instant Start, Programmed Start, or Rapid Start T8 fluorescent electronic ballasts power lamp. Once installed, lamp emits 1,800 lm over 330° of its surface. CRI is 83, and available CCTs are 3000K, 3500K, 4000K, and 5000K. Glass construction optimizes optical efficiency.