That isn't a 10000k bulb, that is 10000 lux, which I believe is the brightness... Totally different, and those seem like they are for illness or some kind of stimulation for the body.
You can get expensive LEDs for the price of those lamps or you could get the Finnex Fugeray for low-moderate light or the Fugeray2 for moderate-high light. Note that high light will usually grow algae without CO2. Here's a link http://www.amazon.com/s/ref=nb_sb_ss...ex%2Caps%2C635
Oh and all light bulbs, excluding LEDs must be replaced, it is just how it is.