HPST, High Pressure Sodium Lamp, VENTURE 00172 400Watts HPST.400/E40/HO High Output Bulb, Packaging is a bit tatty but complete with instructions, Please note; requires a lamp Ballast for it to function.

  • Description: 

  • HPST.400W/E40/HO Performance Data Rated Light Output (Lumens @ 100 hours)56000
  • Lamp Lumens per Watt (100hrs)140
  • Rated Life (hrs @ 10Hr./Start)32000
  • Correlated Colour Temperature (K)2000
  • Chromaticity (CIE - X Y)525,425
  • Colour Rendering Index (CRI) or (Ra)25
  • Typical Warm-Up Time (Minutes)3
  • Typical Hot Restart Time (Minutes)1
  • Energy Rating (ERP)A++ 440 kWh/1000h
  • Physical Data Base DesignationE40
  • Bulb Diameter (mm)46Max. Overall Length (mm)278
  • Light Centre Length (mm)175
  • Effective Arc Length (mm)85.3
  • Max. Base Temperature (°C)250
  • Max. Bulb Temperature (°C)400
  • Socket Pulse Rating (KV)5
  • Mercury Content (mg)12.5
  • Lamp Electrical Data Nominal Lamp Wattage (W)400
  • Lamp Operating Voltage (V)100
  • Lamp Operating Current (A)4.5
  • Min. Open Circuit Voltage (RMS)198
  • Min. Starting Pulse (Peak V)2800-4500
  • Min. Pulse Width (Microseconds)1 @2700V
  • Min. Pulse Rate Per ½ cycle1
  • Pulse Position (Electrical Degrees)60-90, 240-270