Details: Tip: This is a loose part and needs to be assembled - 16-segment audio spectrum display PCB size 176*50mm, LED size 167*41mm. - The thicknessfor the flattened PCB board is 14mm, the thicknessfor the LED module is 8mm, and the total thicknessfor is 22mm. Size: narrow screen 150*34mm, wide screen 160*40mm important: 1. The module is green, the power supply is DC 5V/600MA, the maximum brightness of the whole board does not exceed 600MA, and the USB power supply with an output current greater than 600MA can be used 2. The "BG" printed on the module is green, and the printed pins are + pole, corresponding to the "+" on the board 3. Equipped with 33 green modules, more for spare 4. Pay special attention to the color and polarity of the LED module when welding. Be sure to remember the row of pins, the LED module corresponding to the electrode position, and the LED module position to be soldered last Feature: *Display flip function, 16-level brightness adjustment *The spectrum of main landing speed, peak hold time and descent speed can be adjusted individually *With smooth display and bottomless display mode, excellent AGC processing. Make the signal display richer *Using a professional constant current driver chip with blanking, the LED light has no problem of light and dark flickering Specifications: Part Name: LED Audio Spectrum Color:As show Model: JVFD2515/17 Size: narrow screen 150*34mm, wide screen 160*40mm Input voltage: 5V Type-C/12VDC Sleep current: 0.03A (5V) Working current: 0.3-0.8A (5V) Input channel: audio input x1 Pickup: Silicon Mark EMS (jumper selection) Frequency response: 300Hz-20KHz Input impedance: 50kOhm Screen material: glass Shell material: Acrylic PMMA MCU: STM32F103 Display resolution: 25 segments and 15 levels Functions: Optional spectrum mode, clock, speed adjustment, brightness adjustment, gain adjustment (internal/external) Package Contents: 1*LED Audio Spectrum DIY Kit Note: This is a loose part and needs to be assembled Vfd2515/17 Audio Spectrum Analyzer Vfd Sound Level Meter Vu Meter Screen Display Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.