Features:Bi-color temperature (3300K~5600K) can be adjusted steplessly. Its stepless adjustable brightness can also be adjusted from 20% to 100%, max. brightness is 3950 lumens.High brightness LEDs are used which are also energy saving, high efficiency, low light decay and long service life.With LCD display which can show the brightness, color temperature and battery percent.More than 95% color rendering index (CRI) makes the picture much nature.Metal frosted glass diffuser adopts the broad width design, which can be easy to provide super wide angle lighting for objects in the state of being photoed or video recording.Four-way constant-current constant-voltage function can remain the brightness of VL-40T video light unchanged, no matter how much of remaining electric quantity it has.Two kinds of power supply modes, suitable for long time continuous video light filling, interview and product photography, etc.