XIANQI 7 Color Change: A variety of color change modes, slowly and automatically change the color, just put it in the water, it will light up. Note: You need to pull out the insulating sheet before opening it. Waterproof Pool LightsWith good water resistance and durability, the floating spa lights for hot tub are able to float on the water and keep good conditons. With a good sealing bottom, you will never worry that the floating flower pond lights will be ruined by the water or the rain. Battery Powered: Auto color changing Battery operated! No need to plug in! Can use anywhere! Waterproof decorative accessories are great for all occasions Suitable to build romantic atmosphere Romantic Tealight: There's nothing like candle light for creating a romantic mood.Ethereal and dreamy candles lightings help make great decor for wedding ,anniversary, garden cocktail / holiday / birthday parties, Valentine's Day, honeymoons, festival Christmas or other high-end event. Versatile Candle Lighitng: Just float creative LED candles in fishbowls,vases,centerpiece arrangements, outdoor ponds, swimming pool,artificial water features and any other standing body of water.These lovely lights will make the perfect accompaniment to a centerpiece color: White Packing size: about 16.1*11.7*4cm Quantity delivered: 4 pieces