Member Exclusive: What is the difference between Speedlights, Monolights and Packs & Heads?

I am often asked what the difference is between AC Powered Packs & Heads, Monolights and Speedlights or Speedlites. We will also touch on flash duration too and how many watt-seconds you need too.

Speedlite or Speeedlights, Monolights, Packs & heads

Canon Speedlite 600EX II-RT https://amzn.to/3AFoLII or https://adorama.rfvk.net/6bXW6b

Monos
Elinchrom ELC 500 https://amzn.to/2PzMLGP
Elinchrom ELC Pro HD 500 https://amzn.to/3AJJTft or https://adorama.rfvk.net/NK0M0b
Elinchrom ONE https://adorama.rfvk.net/5bZgYL
Profoto D2 https://amzn.to/3G3SQ5S

Packs & Heads
Elinchrom ELB 500 TTL Dual To Go Kit
https://amzn.to/3lHUcea
Elinchrom Digital RX 1200 https://amzn.to/2uI4XHh
Elinchrom Zoom Pro Strobe Head https://www.amazon.com/gp/product/B006VKATW2/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B006VKATW2&linkCode=as2&tag=john0d1-20&linkId=ef4a6665831d627196ee0d88c139431c
Profoto 8A
Profoto ProHead Plus UV 250W Flash Head https://amzn.to/3o96yhD
Profoto Acute 1200
Profoto Acute D4 head

MY GEAR:
Canon EOS R5 camera https://amzn.to/3vPGmeb
Canon BG-R10 https://amzn.to/2OUmRQY
Canon RF 85mm F1.2L USM https://amzn.to/3tHbPxm
Canon RF70-200mm F4 L IS USM https://amzn.to/2Z4GOd5
Canon RF 28-70mm F2L USM lens https://amzn.to/3vkEWbE
Canon EF 16-35mm f/4L IS USM https://amzn.to/3KEf5Tg

Music: Evolution by Bensound http://bensound.com/