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Lamp Selection Guide

This guide is to help our customers better understand some of the acronyms assoicated with different lamp types. You may find the acronym on the left and read more about it on the columns to the right.

courtesy of OSRAM

What it says:

   What it means:   Details:  
 

HMI®

   H = Hg, M = Mittelbogen (= medium size electrode gap), I = lodides for daylight character  

single/double-ended
daylight, 6000 K
CRI > 90
hot re-start
200 - 1000 hrs

  
 

HTI®

   H = Hg, T = Tageslicht (daylight), I = Iodides (Main difference: shorter electrode gap than HMI, alloswing for better optics)   short-arc
double-ended
6000 - 8000 K
750 - 2000 hrs		  
 

HSR®

   H = Hg, S = Safe (safe handling with outer jacket), R = Rare earth metals (filling)   single-ended
6000 - 8000 K
500 - 1000 hrs		  
 

HSD®

   HSR + D = Durable (longlife). Designed primarily for Architainment   single-ended
6000 - 8000 K
2000 - 6000 hrs		  
 

HCD®

   HSD but with C = Ceramic (ceramic technology). Designed primarily for Architainment. Lower color temp. Much higher CRI (89-95) than HSD   single-ended
ceramic technology
3200 - 4200 K
8000+ hrs