How to use: Before use, twist the light switch itself in the correct direction. There is a white diaphragm inside, which can be removed to turn on the light Designed for Ninja Slushi FS301/FS300: Features a plug-and-play design with a capsule-shaped lighting module that perfectly fits the machine's bottom slot. No tools or installation steps required-just place it in and enjoy the illuminated experience Wireless Remote Control Dynamic Light Effect System: Our for ninja slushie machine led lights have13 colors + 4 light effects (flash/strobe/gradient color mixing/party flash) ,An essential accessory for becoming a ninja slushie Invisible Non-Interference Operation Experience:Our for ninja slushie machine led lights the ultra-thin body (size 30mm x 20mm) is completely hidden in the machine slot and does not block the feeding/observation window, the size of the bottle cap precisely matches the bottom slot of the mixing container, and can be directly placed and activated, with zero installation and zero tools Fun for Parties: Add a vibrant, festive touch to any event! Whether it's a birthday party, wedding reception, or holiday gathering, the colorful lighting effects create a fun and lively atmosphere, making your slushie machine the centerpiece of the occasion Color: Transparent Material: plastic Package Contents: 8 x Lights 2 x Remote control 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.