
Build is great everything works as it should and pretty solid for medium lights. They shed some serious light and do everything I need and more for the price (got 3 packs on Primeday). The app is very basic unless you're an old man buying it for a kid's birthday party or something weird (see other reviews). Took me about 5 minutes to set it up and figure out how to swing. I would recommend these 100% as I have used older LED panels on set which were less user friendly and couldn't do some of what these can do. get a firmware update. Not a huge hit, but something that can be done in hindsight for all existing and future 660s with minimal effort on the Neewers side. Great buy guys.

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