These have 0.6 to 760 lux.
There is no additional shipping if you get more than one if you use priority mail.
Email us if you have any questions. Thanks
We combine shipping on multiple auctions that end within a week.
We send you a delivery confirmation number when we ship the item (US Only)! International buyers will receive an email with the customs number on it.
Please read the shipping and refund policy, email us if you have any questions. Thanks!