VU Meter: Stable and reliable performance. Easy to use. Driver Board: The fourth generation driver board, further sharpen the of the size. The fourth generation of driver board board instead of perfect for 7318IC, improved 7318. 2 disadvantages: small swing plate; adjust small sensitivity. Small space, easy to install. Well done and . Name:VU Meter Panel Supply Voltage: 6-12V Accuracy Class: 5% Display Type:Analog Only Measuring Range:0-500UA10% Resistance:65010% Accuracy: 5% Approved Location:Full-scale 500UA Instructions: 1. In for DC 12-15V Power Supply for Transmission Plate. (recommended power or a separate winding power supply plate when not in use 45MA current backlight). 2. L, GND, This is the driver board The low-level input terminals for connections are players, computer sound cards, the and other source device, L, GND wiring , respectively: To the left, the right channel can be. 3. and are two adjustable resistors board driver can control the size of the swing hands. 4. The backlight DC12V power meter is used after the driver board backlight used for voltage regulator. 5. Note that the positive and negative for head interfaces. To extend bulb backlight life, you can use the following method: 1. Backlight brightness according to the conditions to meet the requirements to reduce the operating can be considerably longer lasting. 2. Power 10-12V, 10 Euro Series at 50 Euro Limiting Resistor, reducing the impact on the boot filament. Colour:Black Material:plastic+metal Package Contents: 1 set * VU Meter Panel 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.