Features: 1.High intensity egg candling lamp to control egg development, helps observe the growth of fertilized eggs. 2.After the incubator has been running for a few days, it is possible to scan the eggs with a bright light to see inside the shells, allow you to see the fertilized eggs showing a dark spot and veins. 3.Powered by 3 AAA batteries(not included), light weight, compact and portable design, easy and convenient to use. 4.The egg candling flash light provides bright and cold light, for ultra safe lighting of your eggs. 5.The cold light tester is not only for someone who wants to hatch eggs, it is also suitable for children and students to learn the incubation process. Suitable for fun class or school lab. Specification: Conditon: 100% Brand New_x005F_x000D_ Item Type: Egg Candling Lamp_x005F_x000D_ Material: ABS_x005F_x000D_ Optional Color: Red, Blue, Black_x005F_x000D_ Power Supply: 3 x AAA Batteries(Not Included)_x005F_x000D_ Battery Capacity: 680mah_x005F_x000D_ Application: Eggs of chicken, goose, crane quail, duck, pigeon PackageList: 1 x EggCandlingLamp