UPDATE: I have now bought the MK-Y400B and MK-Y600B video lights. These are really big and bright video light panels. It comes with adjustable color temperature with 2 sets of LED bulbs. On the back of the flashlight is a single intensity/brightness dial with a knob in the middle. Pressing this button toggles the knob to control either the 3200K LEDs or the 7500K LEDs or both at the same time; The corresponding indicators for 3200K and 7500K indicate what type of light you are setting up. Mine came without a power adapter, but there is a 7 to 12 volt DC connector on the back of the flashlight. There are also 2 battery compartments for Sony NP-F type batteries. Due to its size and number of LED elements, this product is much brighter than other camera video lights I own, so I am very happy with this purchase. I posted some photos. If this review was helpful, please click the button. Thanks very much!