High Pressure Sodium HPS 70W vs Ceramic Metal Halide CMH ( CDO) 70W

Comparison of two lighting technologies: High Pressure Sodium HPS and Ceramic Metal Halide CDM (CDO) from Philips, an improved Ceramic Metal Halide lamp from Philips released around 2000 along with a second improved version, the CPO, where it is not recommended to operate with classic HPS/MH magnetic ballasts. The CPO must operate exclusively with electronic ballasts compared to the second improved lamp type, the CDO and the older type, the CDM released in 1994, where both these types of CDO and CDM can also operate with traditional magnetic ballasts like HPS, but they have a slightly worse maintenance of their initial brightness compared to HPS and especially the older type, the CDM, where the maintenance of the initial brightness at the end of its life often ranges around 65-75% compared to the CDO which is often a little better approximately 72-80% and CPO and HPS also have equally good retention of initial brightness, where at the end of their life they usually retain approximately 82-88% of their initial brightness

HPS: Philips Master SON-T Pia Plus 70W 6600lm 2000K golden white light vs
This particular one has a production code of 9D which means it was manufactured in April 2019

CDO: Philips Master CityWhite CDO-TT Plus 70W 7700lm 2800K warm white
This particular one has a production code of 8G, which means it was manufactured in July 2018

Music 🎶: Crazy - Patrick Patrikios