Product Overview
Sylvania Lumalux StandBy S51 400 Watt High Pressure Sodium ET18 Tubular Lamp
- E-39 Mogul Screw-In Base • Rated Life 40,000hrs • CRI 22
- Color Temp 2100k Warm White • Universal Burn Position
- Ansi Code S51 • MOL 9.75in x DIA 2.24in
- Rated 100 Volts • Sold 20/Case
Addtional Information
- Use with 4000V pulse rated sockets only
- Standby feature not guaranteed beyond 24,000 operating hours
- Dual arc-tube construction ensures quick restarting in the event of a momentary power interruption
- Extremely long life — Most lamp types have an average rated life of 40,000 hours
- Very high efficacy: Up to 127 initial LPW • Lead-free borosilicate hard glass outer jacket
- Lead-free bases allow a maximum base temperature of 250°C, 40°C
- Higher than ANSI specification for soldered bases
- Nearly equal light output as compared to standard LUMALUX HPS lamps
- Direct replacement for standard HPS; operates on ANSI ballasts of similar wattage