Nominal voltage 100V
Nominal wattage 250W
Rated wattage 255W
Lamp current 2.95 A
Ignition voltage 3.3 / 5.0 kVp
Rated lamp efficacy (standard condition) 124 lm/W
Energy consumption 281 kWh/1000h
Nominal luminous flux 31100 lm
Rated luminous flux 31600 lm
Color temperature 2000 K
Color rendering index Ra
Rated LLMF at 2,000 h 0.98
Diameter 91.0 mm
Length 226.0 mm
Lamp mercury content 24.0 mg
Maximum permitted outer bulb temperature 400 °C
Maximum permitted base edge temperature 250 °C
Lifespan B50 32000 h
Rated lamp survival factor at 2,000 h 0.99
Operation mode LLMF/LSF 50 Hz
Base (standard designation) E40
Design / version Coated
Footnote used only for product Important: Before replacing for NAV Standard lamps in existing installations, check that the igniters are suitable
System guarantee level 3c
Dimmable Yes
Burning position Any
Enclosed luminaire required No
Energy efficiency class A+
VIALOX NAV-E SUPER 4Y lamps are among the brightest and most economical high-pressure sodium lamps. With a life up to 25 % longer and a luminous efficacy up to 20 % higher they are particularly economical and efficient. The result is a four-year maintenance cycle and greater distances between masts.
Product benefits
-Dimmable on conventional control gears and electronic control gears
-Optimum energy efficiency on POWERTRONIC PTo 3DIM ECGs
-Up to 25 % longer life than standard lamps
-Greater reliability than standard lamps
-Up to 20 % higher luminous efficiency than standard lamps
-Greater mast spacing possible than with standard lamps
-Better luminous flux maintenance than standard lamps
-Four year relamping cycle
Areas of application
-Streets
-Tunnels, underpasses
-Buildings, monuments, bridges
-Industrial installations
-Car parks, courtyards
-Parks and gardens
-Outdoor applications only in suitable luminaires
