NAV 250W super 4Y E40 sodium lamps performance

Nominal voltage 100 V
Nominal wattage 250 W
Rated wattage 255 W
Lamp current 2.95 A
Ignition voltage 3.3 / 5 kVp
Rated lamp efficacy (standard condition) 124 lm/W
Energy consumption 281 kWh/1000 h
Nominal luminous flux 31100 lm
Rated luminous flux 31600 lm
Color temperature 2000 K
Color rendering index Ra < = 25
Rated LLMF at 2000 h 0.98
Diameter 91 mm
Length 226 mm
Lamp mercury content 24 mg
Maximum permitted outer bulb temperature 400 °C
Maximum permitted base edge temperature 250 °C
Lifespan B50 32000 h
Rated lamp survival factor at 2000 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
Dimmable Yes
Burning position Any
Enclosed luminaire required No
Energy efficiency class A+

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

It needs ballast	yes
Energy efficiency class	A+
Lamp holder, lamp socket	E40
Wattage - (W)	250
Luminous flux - (lm)	31100
Luminous efficacy - (lm / W)	124
Color temperature - (K)	2000
Color rendering - (CRI)	25
Energy consumption - (kWh / 1000h)	250
Lifetime - (h)	32000
Factory packed - (pieces)	12

General safety informations