radium 400W blue halide bulbs with aparent diferent spectrum

[sensei]

I just changed my halide bulbs and I noticed that 2 of the 5 new bulbs are giving a different color. 3 of them have the blueish look but the other two look more white.
not sure if this is normal?? not sure if I need to allow them to burn a few days ?

thanks

 

[DesertReefT4r]

Odd but give it a few days. All using the same ballasts right?

 

[sensei]

Odd but give it a few days. All using the same ballasts right?

Yes all with same ballast.