0:00 - 1:14 - What is a Speedlight? 1:15 - 2:18 - How Does a Speedlight Work? 2:19 - 2:49 - Why Would Someone Choose Manual Flash Over TTL? 2:50 - 4:00 - What is the Purpose of a Speedlight Flash? 4:01 - 4:16 - What is the Difference Between a Speedlight and Flash? 4:17 - 5:17 - How do You Choose a Speedlight? 5:18 - 6:43 - Is TTL Flash Necessary? 6:44 - 8:50 - Pros and Cons Written Version: https://www.imaginated.com/photography/photography-glossary/what-is-speedlight/ This is a guide covering everything you need to know about speedlights.