It can produce a 50/60Hz frequency flash light source according to the frequency of 50/60Hz household power supply, which is almost suitable for all countries in the world. You can adjust the speed of the record player to the most accurate position to ensure the most accurate audio output using the speed plate in the package. The strobe uses 12 VAC power supply, which is safe and effective. With 3W high brightness LED output, it can be used in any environment, day or night, indoor or outdoor. Small, easy to use, and convenient to collect. Package Contents: 1 x Strobe Light 1 x Tachometer Disc 1 x Power Adapter

How to use: 1.Place the Speed Dial SP1 on the turntable of the record player. 2. Turn on the turntable of the rotary record player. 3. Turn on the D60 strobe. 4. Adjust the speedometer to the test disk, make it more closer (5-10CM is appropriate). 5. Look at the corresponding 33.3/45 speed stripe on the test disc. 6. If the rotation speed is correct, the LED light will be stable and stable.7. If the record player is adjustable, please adjust the disc rotation speed until the corresponding speed strip stops rotation. 8. After adjusting the speed, remove the speed dial and place the record in the record player to listen to the most accurate music.