I agree with this review and am commenting here as there are so few reviews specifically for the white light. Full disclosure: I bought a Fibre Flare white super shorty (battery version) direct from the company, not via Amazon. My experience with the product itself is the same though. The red light, which I also have, is quite bright and visible, and uniformly red. I'm very happy with it. The white light is less bright and while it is white near the edges of the tube it goes distinctly yellowish towards the centre.
I'll keep the light now as returning it is too much hassle and expense, but if you haven't bought the white light I advise against it, it really isn't worth the money. Maybe consider one of the coloured side light options from the same company.