Part Number:1 Welcome to my store , Hope you have a pleasant shopping trip!Description: 32 colorful LEDS are under the control of the single-chip microcomputer programwhich pin of the single-chip microcomputer outputs low level, the corresponding LED is lit, and each LED can be programmed to light up at every moment, and then becontinuously lit The combination of LEDS presents a colorful and dazzling animationIt is a good choice for your own appreciation and as a gift. 51 single-chipmicrocomputer control Led is also an introductory basis for learning single-chipmicrocomputer, which is suitable for single-chip beginners and enthusiasts toimprove the interest of learning single-chip microcomputer and the basis of welding.Parameter: 1>.Work Voltage:DC 4.5-5V 2>.Work Temperature:-25~85 3>.Work Humidity:5%~95%RH 4>.Size: 96*86*20mmPackage List: 1 x Soldering Practice Board Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow 1-2cm slight dimension difference due to different manual measurement. 32 LEDS: 32 Colorful LEDS Are Lit, and Each LED Can Be Programmed to Light Up At Every Moment. Work Voltage: The Power Supply Voltage Is DC 4.5-5V, and A Stable Power Supply Is Required. Gifts: The Combination of LEDS Presents A Colorful and Dazzling AnimationIt Is A Good Choice For Your Own Appreciation and as A Gift. Application: Suitable For Single-chip Beginners and Enthusiasts Toimprove the Interest of Learning Single-chip Microcomputer and the Basis of Welding. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. See more product details 32 LEDS: 32 Colorful LEDS Are Lit, and Each LED Can Be Programmed to Light Up At Every Moment. Work Voltage: The Power Supply Voltage Is DC 4.5-5V, and A Stable Power Supply Is Required. Gifts: The Combination of LEDS Presents A Colorful and Dazzling AnimationIt Is A Good Choice For Your Own Appreciation and as A Gift. Application: Suitable For Single-chip Beginners and Enthusiasts Toimprove the Interest of Learning Single-chip Microcomputer and the Basis of Welding. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.