If your living quarters are attached to your grow op, then why would you even want to get rid of that heat? If that is what you really want, it can be done easily without spending more money on a chiller or the power to run it, all you need is a pump.
Heat can be dumped in copper piping in your basement floor under a layer of concrete (conducting it into the ground), in copper piping buried underground outside - preferably below the frost line (same principle as a ground source heat pump), by using nearby lake/pond/river water as coolant, or even by simply circulating your coolant through an old car/truck radiator installed outside in the wind (if the bulbs get too hot you might want to consider adding more radiators for greater dissipation or a fan for better circulation). This is how water cooling works on a car, heat is dissipated through a radiator with air flowing through it, not by installing an air conditioning unit on top to cool the coolant...
Better yet, think green! Think of the advantages that water cooling offers over air cooling, everyone saying that air cooling is cheaper and just as good, is missing the bigger picture here! Heat contained in water can be integrated into your home, into your heating systems, it can be stored for later use. Good luck pulling off that trick with a stream of warm air... Not to mention the stealth-factor that water-cooling offers, as your ventilation and charcoal needs (and noise) are greatly reduced.
Since you already paid for that electricity to run the lights, why not recuperate the heat you all so struggle to get rid of? You WILL end up paying for hot water anyway, so why not try to save on that a little in combination with a stealthy solution?
The solution is so simple... Install an insulated passive boiler, one that just stores water, between your cold water feed and your hot water kettle/boiler. This arrangement will feed cold water from the city feed into the passive boiler and from there on into the hot water kettle/boiler. Now comes the "ohh"-part: You recirculate the water from the passive boiler reservoir through the watercooled HID armature(s). Imagine the (kilo)Watts you can harvest when your lights are on and then think for a second, when I tell you that most electric water boilers usually start at around 2.5 kW... The only downside is that the heat storage is limited by the size of your storage vessel (boiler), so if you plan to leave the house unattended (vacations) then make sure your boiler is sufficiently large to store the accumulating heat while you are gone, to prevent overheating.
Anyway, the heat extracted from the bulb will preheat the water fed to your hot water installation, in turn decreasing the amount of energy required to get the water up to the desired temperature, or decreasing the amount of hot water used due to the higher temperature. As a result, your heat pattern will be reduced, ventilation / active carbon filter needs and noise will decrease, stealthiness will greatly increase and with a stroke of magic, even your electrical bill will now start to decrease..
