Light Source: 6 LEDsColors: Red, Green, BlueMaterial: food-grade PCBattery Type: 3*AAA Batteries(battery not included)Product Dimensions: 10.5*10.5*8.5cmPackage Weight: 155g (battery not included) How to UseStep 1.Hold the bottom with one hand while anticlockwise twisting the lid with another hand until Until the lid is unscrewedStep 2.Screw out the three screws, and take out the cover. put three AAA battery into the battery case, make sure the battery's anode and cathode are correct step 3. Put on the switch to check if it will work, if it works then long-pressing on the switch and it will turn offStep 4.Lastly, tightening the screws back if not，the water will ruin the battery, they will be damaged Warning1. The light should be floating on water rather than submerging under the water! 2. To turn off the light, just press the button and holds for 3 seconds.