Description: F54T5 / 841 / HO / SS 48FT Safe-ShieldWatts: 54Life: 20,000Shape: T5Base: G5CRI: 824100Kelvin: 4100Package Qty: 25Case Qty: 40Length: 45.75" / 1162.05mmDiameter: 0.63" / 15.88mmAdd Info: This bulb has a clear shatter resistant coating which blocks the majority of this lamps UV output. <BR>Do not operate this lamp in enclosed fixtures.<BR>Safe-Shield coating reduces light output by 1 or less.Base: G5