A couple MH light questions

[MikeP]

I have 2 pendant style mogul base MH lights over my tank. They are what I call lampshade style (see pic). I have 175 watt 14k bulbs in there and my questions are...

1) The inside of the pendant is white in color, is that typical of this style? I'm wondering because I thought I would see a bit of blue in the tank with the 14k bulbs but there isn't even a hint of blue. I was thinking that is because of the white reflective surface in the pendant and even if I bought 20k bulbs it might not make any difference.

2) There are no markings on any of the lighting equipment that says it runs 175 watt bulbs. I only put 175w in because that's what was in there when I picked the stuff up. How can I tell if the ballasts are rated for a higher (or lower) wattage bulb?



Thanks for any info