I've had a good trawl through the forum and see you are a bit of an expert where the visor is concerend. This is your penance. ;-)
I used a cheap lightbox last autumn/winter and it did exactly nothing for me. I think it was because I couldn't religiously sit in front of the damn thing for up to an hour at a time. Additionally, having to be out of the house by 7.30am meant the only time I could use it was when I got home at 6.30pm and it just wasn't practical timewise.
Anyway, I'm leaning towards buying the BioBrite visor and would be grateful if you or any other user could help with the following:
If I use the visor early evening, say 7pm, in your experience could this impede my ability to drop off to sleep at bedtime (around 10pm). I note in some of your earlier posts (Linda) you experieced insomnia when you first started using the visor. You seem to have found a routine that works for you. What helped; what didn't? :-)
In your experience, should a user get some useage hours in the bank, ie, it's reasonable to expect the weather to become grim Sept/Oct time so perhaps users should start in August to get a head start. I read somewhere light therapy shouldn't be used year-round as the user will become used to it resulting in a negligible effect on miserable, dark days. But with the inclement weather we get in GB how does one know how to plan useage? Thoughts?
Finally, does the visor leave a mark on your forehead? Don't laugh! If I do find 15 minutes to use it before I go to work I don't want to turn up at the office with a huge dent in my forehead.
As far as light therapy devices go, I think the BioBrite works as well as a light box (I have both). You can adjust the headband so that it isn't tight enough to leave a mark.
Most people with SAD need their light first thing in the morning in order for it to be effective. You might try experimenting with this to discover what works for you. If it works in the evening then that's great, but yes it can potentially cause insomnia.
I am actually leaning toward the idea that light therapy was more of a contributor to my problem, than a help, for much of the time I was using it. I gave it a go for just 20 minutes about a week ago and ended up having high cortisol problems, an instant head cold, heart palpitations, and generally feeling very jittery and out of sorts. So far I'm still doing OK, no worse for the dark days, and I intend to go through the winter without light therapy.
You might also want to look at other ways of managing the winter problems; you're welcome to look at my topic called Change Your Diet, Change Your Life.