i had a high idea to possibly cure night temp problems

Now i have now idea if this will work, infact it probably wont but my night temps are too low. gets down to about 55 at night....but i dont have a space heater or anymoney to get one...but i do have black lights....would they still affect the dark time my plants need in flowering stage?? if anyone knows lemme know.
Thanks
mjftw

Try running your lights during the night and off during the day

Sorry bro....but I'm pretty sure that won't help ya in this case... I happen to be an accomplished inventor (one U.S. patent granted others pending) and already devised a better way to do this. Can I give you details here? Not yet.... but stay tuned my friend.

oh cmon man lol...u tease

but autogrower its not much warmer during the day...its only bout 30 outside

build a growbox orr bring them inside, blacklights should not be used, if anything get like 4 of the little green party incandesent lights, the spectrum it puts out doesnt effect lights out and incandesents put out more heat than fluoro tubes or cfls. they cost like 1.50 each at dollar general.

What type of room is this in? Where is your fresh air intake from? Is it running at night?

Black lights are floro's and will affect the photo. Your best bet is to bring air in through a heated room at the same cfm as your exhaust. If money is an issue, as you say it is, you can use computer case fans. Just get some wirenuts and wire them up to a 12v adapter. You can also try putting a computer near the grow box and venting the warm air into your space. (if it is as small as I think it is).

There are many ways to do this. Your plants can't take much lower than 45 degrees F before catastrophe, some will argue that, but your growth with be impared and your quality will be compromised. You can also try to insulate the box with a sleeping bag. Careful not to suffocate though.

I usually spend 15 buck on a sheet of 1" thick foam (hard and shiny) commercial insulation for any grow space. Obviously more money for larger rooms. This helps hold the temperature like a thermos. There are many ghetto tricks, but just make sure you are using discretion and fire safety conscious.

its in my closet...i have a fan running on em all day and it is off at night...its just that my room is in the attic and it seems to be colder up here than downstairs where the thermostat is...night temp is like 55 like i said...and theres really no where to pull air from that would be warmer...and i do have a grow box insulated with that aluminum bubblewrap type of insulation (idk the proper name for it lol)...but its dis-assembled and its bigger than my closet prolly lol...looks like im gonna have to clean my room and make some room for it before it gets any colder out lol...well thanks for the advice guys