Performance Data
Rated Light Output (Lumens @ 100 hours) 5500  
Lamp Lumens per Watt (100hrs) 73  
Rated Life (Hrs @ 10Hr./Start) 10000  
Correlated Colour Temperature (K) 4200  
Chromaticity (CIE - X Y) 377,390  
Colour Rendering Index (CRI) or (Ra) 70  
Typical Warm Up Time (Minutes) 2-3  
Typical Hot Restart Time (Minutes) 4-6  
Burning Position Horizontal±45o  
S/P (Multiplier) 1.7  
Physical Data
Base Designation Rx7s  
Bulb Designation T20  
Bulb Diameter (mm) 20  
Max. Overall Length (mm) 117.6  
Light Centre Length (mm) 114.2  
Effective Arc Length (mm) 9  
Max. Base Temperature (°C) 280  
Max. Bulb Temperature (°C) 500  
Luminaire Type Enclosed  
Socket Pulse Rating (KV) 6  
Mercury Content (mg) 7.8  
Lamp Electrical Data
IEC Standard 61167  
Nominal Lamp Wattage (W) 75  
Lamp Operating Voltage (V) 95  
Lamp Operating Current (A) 0.9  
Min. Open Circuit Voltage (RMS) 198  
Min. Starting Pulse (Peak V) 1800-4500  
Min. Pulse Width (Microseconds) 1 @3200V  
Min. Pulse Rate Per ½ cycle 1  
Pulse Position (Electrical Degrees) 60-90, 240-270