Sylvania CF42DT/E/IN/841/ECO Dulux® T/E Triple Amalgam T4X3 Compact Fluorescent Lamp; 42 Watt, 4100K, 80 CRI, GX24q-4 Base, 16000 Hour Life, Phosphor Coated

Size: 0.472 Inch Dia x 6.500 Inch MOL

Minimum starting temperature is a function of the ballast; consult the ballast manufacturer

There is a NEMA supported, industry issue where T2, T4, and T5 fluorescent and compact fluorescent lamps operated on high frequency ballasts may experience an abnormal end-of-life phenomenon

The life ratings of fluorescent lamps are based on 3 hour burning cycles under specified conditions and with ballast meeting ANSI specifications; if burning cycle is increased, there will be a corresponding increase in the average hours life

Lumen output and life rated on high frequency operation

Rule of Thumb for compact fluorescent lamps- divide wattage of incandescent lamp by 4 to determine approximate wattage of compact fluorescent lamp that will provide similar light output

Optimum light output for DULUX T/E IN amalgam compact fluorescent lamps occurs at approximately 35 deg C/ 95 deg F ambient temperature when the lamp is operated in the base up position

The lumen value listed refers to the optimum light output; non-amalgam compact fluorescent lamps provide atleast 90% light output from 60 - 100 deg F in the base up position, the temperature range is narrower for horizontal or base down position