Small Size, 4A High Power, Smooth Dimming,Constant Voltage Dimming Scheme, Output Voltage = Input VoltageApplicable To DC 3.7V-24V Range, Lithium Battery Can Be Driven, Blue Light IndicatorWith Switch, 0-100% Range AdjustableNo Flicker, Suitable For Live Broadcast Ring Fill LightProduct Name:DC High Power Led Light Panel ModuleWorking Mode:Constant Voltage, With Switch FunctionInput Voltage:Input DC 6--24VOutput Voltage:Same As Input VoltageLoad Current:Within 5A MaximumLoad Power:Maximum 120W; (Voltage x Current = Power)Dimming Range:0 - 100% Stepless Adjustment, No FlickerTips:1. This Module Has Input Reverse Connection Protection And No Output Short-Circuit Protection. Please Check That The Wiring Is Correct Before Connecting It.Electrical Work.2. The Input And Output Voltage Difference Of The Module Should Not Be Higher Than 3V To Ensure The Best Dimming Effect And Efficiency.Like:Input 9V, With 2 Strings Of LEDS (The Light Source Must Be Resistor-Limited)Input 12V, With 3 Strings Of LEDS (The Light Source Must Be String-Limited By Resistors)Input 24V, With 6-7 Strings Of LEDS (The Light Source Must Be In Series With Resistors For Current Limiting)Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseType:B:SquareColour:As ShownMaterial:PCB+MetalPackage Contents:2 x LED Constant Voltage Dimmer Control Module4 x Screw Installation AccessoriesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.