1. File Formats

Videos are either in .MOV or MP4 format. HD and 4K are usually always in .MOV format, and the smaller files are always in MP4. 

2. File Sizes

Videos can be purchased in the sizes shown below;

Size Pixel size Format
WEB  640 x 480 px MP4
SD 1280 x 720 px MP4
HD 1920 x 1080 px .MOV or MP4
4K 3840 x 2160 px .MOV


3. Types of licenses:

For Video Licenses both the standard AND the Extended license applies.

Standard License images can be used for any illustrative purpose in any type of media.
Examples: websites, web banners, newsletters, PDF documents, blogs, emails, slide shows, TV/video presentations, cell phones, splash screens, movies, magazine articles, books, advertising, brochures, document illustrations, booklets, billboards, business cards, packaging, etc.

Extended License gives you all the rights granted by the Standard License, but also the ability to print our creative files more than 500,000 times and allows you to use them on your own products. Indeed an Extended License lets you create derivative products or services intended for resale or distribution. 
Examples: postcards, calendars, posters, t-shirts, print and presentations templates, video clips intended for resale, video applications and any project where the Fotolia file lends primary value to the product intended for resale or distribution.

Please see our spefications her;

Standard License
Extended License