Philips Ceramalux P-2257-D - Manual

Ideal for security lighting,
roadway lighting, warehouse lighting,
and industrial applications
Ceramalux ® Instant Restrike
High Pressure Sodium Lamps
◗ Extra Arc Tube Offers Light Instantly
After Momentary Power Interruption
and will Provide 80% Light Output
within 1–2 Minutes
◗ Rated Average Life 24,000+ Hours 1
◗ For Applications where Instant
Restrike is Not Required, Rated
Average Life is 40,000 Hours
◗ Operates on Standard HPS Ballasts
and Auxiliary Equipments
1) Rated average life is the life obtained, on the average, from large
representative groups of lamps in laboratory tests under controlled
conditions at 10 or more operating hours per start. It is based on
survival of at least 67% of the lamps and allows for individual lamps
or groups of lamps to vary considerably from the average.