Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Power supply voltage: DC 7V~12V, the product is independently powered _x005f_x000D_ Power supply current: not less than 100MA, can be greater than 100MA _x005f_x000D_ Audio output: connected to the front-end audio signal, power output is prohibited _x005f_x000D_ Light color: green*7+orange2+red*3 _x005f_x000D_ PDB size: 80x16mm _x005f_x000D_ LED size: 58x16mm _x005f_x000D_ LIN: left input _x005f_x000D_ GND: signal input ground wire _x005f_x000D_ RIN: right input _x005f_x000D_ GND: power ground _x005f_x000D_ 12V: 12V power supply positive pole _x005f_x000D_ Power requirements: DC voltage within 7-12V, current above 100MA _x005f_x000D_ Product size: 80.00x16.00x15.00mm/3.15x0.63x0.59inch _x005f_x000D_ Material: mixed material _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Do not use it with overvoltage and do not connect the power cord reversely. _x005f_x000D_ The audio signal of the music light needs to be greater than 60% of the music volume before it can be used normally. _x005f_x000D_ Since the acquisition signal line is relatively sensitive, when the two audio signals are suspended, the LED display will jump, which is normal. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x LED Music Level Indicator Module, _x005f_x000D_ 1 x Wire 1.Compact Size: The LED music level indicator module boasts a small form factor, allowing easy installation into small enclosures. Its compact size makes it a versatile choice for various applications. 2.Adjustable Brightness: With its brightness adjustment feature, this VU meter stereo amplifier board allows users to customize the intensity of the LED lights according to their preferences or specific requirements. 3.12-Stage Tri-color LED Strip: The stereo music spectrum display board features a 12-stage LED strip consisting of 7 green, 2 orange, and 3 red LEDs. This multi-color arrangement provides clear and visually appealing level indication. 4.Independent Adjustment Controls: Users have the flexibility to individually adjust the rise and fall speeds, peak hold time, and decay speeds of the LED strip. This audio level indicator's level of customization ensures precise and tailored visual representation. 5.Isolated Signal Input: The stereo LED level indicator incorporates operational amplifier isolation for the signal input, effectively preventing high-frequency audio interference from affecting the microcontroller. This isolation ensures accurate and reliable level indication without any unwanted noise or distortion.