Review on YONGNUO YN660 Speedlite: Versatile Wireless Manual Flash with GN66 Power for Canon Nikon Pentax Olympus by Stephanie Brown

I love these flashes! They're cheap, and with these YN660s that match the performance of the high-end GN66 flashes from Nikon and Canon, they're definitely worth trying. They work great with the YN560-TX flash trigger. These are manual flashes only, n TTL, but this is the best way to shoot with flash in studio lighting and it forces you to learn how to use the flash properly. can burn out the flash, but they put out more than enough power at a lower power setting so you can shoot pretty fast and still have enough light output when you need it.