in england thames valley have now got new advanced systems aboard their chopper ( only 1 has it in the uk so far as this is a test ) and can not only tell what light spectrums u r giving off but can also tell of a temperature change of .01% but ya shud be able to sleep due to the fact that this is to combat the commercial growers rather than the homegrower. where i live i have choppers over all the time and would say the insolation is vital. i use white black white for the ceiling and windows and the mylor for the walls to reflect the light inwards. have been doin this for over a year now and am outside as well in a shed built of breezeblock so it must be working lol. one thing i learnt is ya cant predict the snow so unless ya in a cellar or otherwise u cant stop the snow melting which is a major give away so try and get what ya can and stop for a month or so to get around this during the cold period of winter.

keep growing lads:thumbsup: