If I might add some "green input": While we are extracting most of the heat from the bulb, why not put that heat to use to save us money, instead of spending more money trying to rid ourselves of it? Think about this for a minute, why would you dump that heat outside or, to make it even more insane, run air conditioners to remove that heat, in turn spending more money to rid yourself of a resource that you will inevitably pay again for later on...
Install a simple boiler, perhaps an old electric boiler for which the components broke down and circulate the water contained within through the Fresca Sol / Liquid Lumens lighting armature. Hook up the boiler between your cold water feed and your regular hot water kettle/boiler. Cold water will first flow through this boiler and then to your water heating system.
Hence, the heat extracted from the bulb will pre-heat your hot water supply, in turn minimizing the amount of energy (fuel/electricity) spent to heat up your hot water to the required temperature.
Don't struggle to remove that heat, it's precious! Do you fancy burning gas, oil or paying for electricity to heat that water and remove the heat from your grow room instead? Just move the heat around to where you can use it, your op will become über-stealthy and your utilities bill will be lower than ever with those hundreds to thousands of Watts of heat at your disposal! ;)
