Users Guide

44 Specifications
• The lamp life rating for any projector is a measure of brightness
degradation only, and is not a specification for the time it takes a lamp
to fail and cease light output. Lamp life is defined as the time it takes
for more than 50 percent of a lamp sample population to have
brightness decrease by approximately 50 percent of the rated lumens
for the specified lamp. The lamp life rating is not guaranteed in any
way. The actual operating life span of a projector lamp will vary
according to operating conditions and usage patterns. Usage of a
projector in stressful conditions which may include dusty
environments, under high temperatures, many hours per day, and
abrupt powering-off will most likely result in a lamp’s shortened
operating life span or possible lamp failure.