I agree with that 100%! A green light is probably better but either way I dont turn lights on for too long during the dark period.Many growers, including myself, will use a regular flashlight or even regular lights to go in during dark. As long as you aren't in there long I personally don't believe it will make a difference. Outdoor grows are constantly experiencing moonlight, headlights, streetlights, etc. and they are fine. I've even turned my 400hps on for a few minutes before with no problems.