HIGH QUALITY MATERIAL: This VU meter driver board is made of high quality fiberglass ABS material, the driver board parts are well made and durable. High Precision: Professional manufacturing, exquisite craftsmanship, and high precision help provide the best performance. Stable performance: The VU meter has better effect, the pointer swings quickly, the response is sensitive, and the wide-range voltage stabilizing circuit makes the working performance more stable. High-frequency low-pass: This driver board supports high-frequency low-pass, adjustable backlight and dark, intelligent driver, and the use effect is very good. Replacement parts: When the for original driver board of the VU meter is , the driver board of the VU meter can be replaced instead of replacing the entire meter, which is convenient and quick. and high quality. Product type:VU meter driver board Working voltage:DC AC 12V-18V Backlight power output:200mA (automatically adjusts the output voltage according to the VU meter backlight voltage) Model input:less than equal 5V rms Tungsten lamp backlight voltage:automatically adjust the output voltage according to the VU meter backlight voltage LED backlight voltage:automatically adjust the output voltage according to the VU meter backlight voltage Driver board output current:Less than 50mA Meter calibration function: supported Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:ABS Package Contents: 3 x Level meter driver board W/cable Only 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.