Product Name: Star Projector Lamp. Laser Wavelength: 532 Wave Long Nebula Color: Colorful Case Material: V0 Grade Flame Retardant ABS Power Input: 5V2A Output Power: <1mW per beam Applicable environment: indoor home theater restaurant cafe bar Operating humidity: 14°F~95*°F(-10~40°C) Product Size: 160*160*66mm You can use the star projector as a car decoration to create a romantic atmosphere, whether you are driving alone, with family and friends, or camping in the countryside.<br/ >【Great Gift Idea】: This starlight projector is very cool, suitable for children's sleep, couple atmosphere, help them fall asleep faster; buy this lamp to amuse your baby, it's so relaxing. A GIFT FOR CHILDREN AND ADULTS --- The Galaxy Star Projector helps children inspire curiosity, imagination and creativity. Also suitable for birthday, party, wedding, car decoration, children's day, Christmas, beautiful room decoration, creating a wonderful and romantic starry atmosphere. The product does not come with batteries.</ p>Note: the data is manual measurement, please allow 1-81cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.