Just a few things for sale...

[Mr Cob]

thanks for the light works great. Do you know how often do i need to change the lamp?
will it look less yellow once i do?

I think once a year, and it has been over a year since it was last changed. a NEW 50/50 BULB should look more blue than the old one, but it's not as blue as a 14k or 20k MH bulb.