Green CFL's during 12/12

Hello, I read somewhere that you can turn on green incandecent lights in a flower room during light out and it will have no negative effect on the plants. Does anyone know if green CFL lights are also safe for this use? I have a green 13 watt CFL but ill replace it with an incandecent if anyone thinks its likely to confuse the plants. thanks for the help

thats a good question i would like to know the answer too. i have also heard about the green incandescent bulbs being used but i just felt even if it really doesn't effect it i just never wanted to do it just to eliminate all risks. when lights off i just make sure there is no light in there at all.

I have my mornings set to 7am, and when I switch to flower that will make my lights out 7pm, If im working late I wont be able to check on the plants other than in the mornings. So i feel like it would be a big help. I have read that as little as 1 lumen of light can be enough to make them switch back to veg, so I see where your coming from not wanting to take any chances, It seems unlikely that the green filters would be able to prevent even just 1 lumen of non-green light to get through. I think I will use it only as needed and only for a few minutes. I might just go get an incandencent because who knows... unless someone can confirm that its safe for me

sometimes I work from 7am till 7pm, so if say they needed to be watered I would have no other choice.

Don't do it! You need a really precise filter like they use in film developing or a really particular green LED - most green CFLs/Incadescents will produce too much light in a noticeable spectrum to the plant.

alright im not fucking around with my plants so Ill take your word for it, any idea where I can order a proper light for this? do they use green in photo developement? I only knew about them using red lights

Hehe, you are thinking about darkroom safelights which are a reddish amber color. You need to look up the precise nm of green completely reflected by the plants and then order the same color filter - I said photography filters as they are the more readily available source for quality specific wavelength filters. I have seen LED headlamps marketed for horticulture which supposedly correspond to this same spectrum.

and on a side note i would recommend that you change your flowering times to times when you are available for future grows

yes i definitely agree with gastanker... they may be emitting PAR radiation so unless you have a specific dialed in LED that is significantly as close to being out of PAR then i wouldnt even gamble with it...

otherwise you'll never get those babes to flower properly

Perhaps I could just change the on/off times slowly by bumping them up 10 minutes a day for the next couple weeks. By the time I get to flower they could be on a schedule like 12noon-12pm, thatll garantee I have at least some time no matter my schedule.
a proper green light would still be handy in any flowering room

pure green lights can be used in a dark room but they will detect that light but could only take it for no longer than 5 mins then it will start to think its daylight ....thats what i was told anyway

get a green led. i have an led bulb that can change to almost any color with a remote... works great and its super green, i know it works because the plants looked 100% green adn the frost looked like green fuzz.

Yea I have some red tuck tape in my room and when the lights are out and I turn on the "green" cfl light I can still see that it is red tape. I guess I wasted that 4$ for the cfl light but maybe I can use for a haloween light or something next year... a jack-o-lantern with a green light inside might be pretty erie