Delivery was very fast, even before the delivery! "Super" Processing made an immediate good impression, unfortunately the ring is too loose on the adapter, be remedied Black duct tape, cut to the back of the adapter! The luminosity is totally ok, even for low key shots! The 3 light settings are a bit Confused! Unfortunately it lacks an adapter for the hot shoe! On the whole I am satisfied, for the price! 4 stars because to loose ring, and a lack of adapter !!!