Bestlight Vpad-150 144 Pieces LED Dimmable Ultra Thin Panel On-Camera Video Light for Canon Nikon Pentax Olympus Samsung JVC DSLR Cameras DV Camcorders The panel light consists of 144 pieces highlighted LED bulbs,which provide continuous light sources with changeable color temperatures (3200K~5600K) and adjustable brightness. 1/4" thread in the bottom of the LED light hot shoe base,can be directly screwed on the light stand/tripod. It has the button for test battery balance & power level indicators which indicates the present power level.When all of the power indication lights are lighting,mean the power is full. Power with Sony NP-F series battery or DC adapter.Very easy to be installed in horizontal and vertical. Note: Video Light Only. Camera,Tripod and Battery are NOT included.