TurboCharged HTML5 Videos is a Chrome add-on developed by LightCone. It is a free tool that enhances your HTML5 videos by adding keyboard shortcuts similar to those found on YouTube.

With TurboCharged HTML5 Videos, you can easily control your video playback. The add-on provides convenient keyboard shortcuts for fast forwarding, rewinding, and adjusting the playback speed. For example, you can use the right arrow key to fast forward 5 seconds, the left arrow key to rewind 5 seconds, and the "]" and "[" keys to fast forward and rewind 5 seconds, respectively. Additionally, you can increase or decrease the playback speed by 25% using the ">" and "<" keys.

Please note that in some cases, you may need to click on the video to focus the mouse cursor before using the keyboard shortcuts. It is important to mention that TurboCharged HTML5 Videos does not get enabled on YouTube videos, as YouTube already has its own keyboard shortcuts for the same functions.

Overall, TurboCharged HTML5 Videos is a handy Chrome add-on for those who frequently watch HTML5 videos and want to have more control over their playback experience.