User Manual
Page 40
... Maintenance Equivalent Lamp Hour = α hours α = A-X--' × χ + A-Y--' × y + A-Z--' × z + A-A--' × a , if X= lamp life spec of Normal mode Y= lamp life spec of Economic mode Z= lamp life spec of SmartEco mode A= lamp life spec of LampSave mode A' is the longest lamp life spec among X, Y, Z, A When you calculate Equivalent Light Usage hour manually, it shows 0 hours.
... Maintenance Equivalent Lamp Hour = α hours α = A-X--' × χ + A-Y--' × y + A-Z--' × z + A-A--' × a , if X= lamp life spec of Normal mode Y= lamp life spec of Economic mode Z= lamp life spec of SmartEco mode A= lamp life spec of LampSave mode A' is the longest lamp life spec among X, Y, Z, A When you calculate Equivalent Light Usage hour manually, it shows 0 hours.