MH light

[sefo]

I just want to know what is better 5500k or 10000k and which one will lose intensity fast? I just have 2 175W 55K and want to know if I should go up.

 

[mr . salty]

I believe the K rating is for the intensity. The deeper the tank is the higher intensity is needed. How deep is your tank? I dont think one will deteriorate any quicker than the other.STEVE