Rainbow Color LED Board Set Quantity: 4 boards The LED color changes each time the switch attached to the board is pressed. ① Red → ② Green → ③ Blue → ④ Pink → ⑤ White → ⑥ Yellow → ⑦ Light Blue → ⑧ Light Green → ⑨ Purple → ⑩ Orange → ⑪ Light Pink → ⑫ Aqua Blue → ⑬ Light Yellow → ⑭ Dark Green → ⑮ Light Red → ⑯ Auto Color Change → ⑰ OFF ※ When the power is turned on, it will light up from the same color as when it was last turned off. ★ This is a set of 4 boards. Size: Length x Width x Thickness 20.2 x 30.5 x 0.8mm MAX 5.7mm Cord Length: Approx. 20cm Voltage: DC4.5-5V Red lead: ➕ Black lead: ➖ ★ Please refrain from price negotiations.