[Monitoring and observation]- This candle Light will let you see the fertilized eggs by showing a dark spot and veins at the beginning.Allows you to clearly see the internal growth of eggs. [Multifunctional]- This Candler Tester has two types of egg holders. One can support larger eggs, such as chicken eggs. A type that supports smaller eggs, such as bird eggs. [Easy to use]- Just plug in the power and turn on the switch to use. [User-friendly design]-The extended power cord ensures that you have enough wire length to connect to the socket. [Widely used]- The light candler tester is not just for someone who want to incubate eggs, it is also suitable for kids and students to learn the incubating process. Suitable for school funny class or shool laboratory. Plug Type: US Plug, it applies to Canada, India, Japan, Mexico, Thailand, Taiwan, the , the Philippines and so on. Specification: Condition: new Material: plastic Color: black size:150mm Output voltage: DC 4.5V Package list: 1 x Egg Candler Only the above package content, other products are not included. Note: Light 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.