Simple solution to the HPS light escaping and alerting the fly overs... do not use it. Use only the Sun Tunnels. At this point and time I have no idea what the intesity of the light of a sun tunnel is. If it equals that of a 100 watt HID then you have enough for 2 square feet. The only thing limiting how many you can put in is the square footage of the Ceiling of the grow room. You can spread them evenly through out your roof to make it look like you are using it evenly through out the house. I suggest doing it DIY as you may not want a home construction company knowing that you are pumping in an insane amount of light to a small area. For me, I have a Family Member who does all the house construction for the extended family and already knows of my botanical ambitions.

I plan to install one in the nest year. I can run a light meter under it and test to see how strong it is on a sunny day and figure out if it is efficient enough to use for growing. It is still just an idea for the future, I would not plan an entire grow using just that, but if it turns out to bring enough light for a grow after tested, I certainly would consider it as a Cost saving, and environmentally friendly way to grow indoors.
greentard Reviewed by greentard on . Bringing in Sunlight to your Grow Closet in a stealth manner I was checking out Sky Lights for a non Marijuana Related Home Improvement on my house and stumbled upon this. Apparently you can tunnell in Sun light to rooms without windows. These do not even have to be built in a direct line, so no one can see in from the sky. And they do not cost that much to buy, and save you money on your electric bill in the long run. I read where Ed Rosenthal mention something simalar throught fiber optics, but he said it would be very expensive, these Rating: 5