Technical Specification:Powered by power cord onlyProduct Dimensions: 5.9 x 1.38 x 1.38 inchOutput (Luminous Flux): 220-240 LumensPower Supply: 100-240 VPackage Including:1 x LED Egg Candler2 x Candler Cover1 x Power cord with US plugFAQs about Egg CandlerQ: Can I tell whether an egg is fertile through candling?A: Most people ask this, but it is important to note that after 6-7 days, adequately incubated eggs should be able to start developing and there is no doubt that a candler will help you notice a small dot at the center of the embryo with veins extending from the sides.Q: How often should I candle?A: While you can do this anytime, the best timing is before incubation. Touching the eggs every so often once they are in the incubator in the name of candling is likely to interfere with their development. There is a limit to how often they should be turned or moved.The recommendation is the 5th and 7th day but if you have to once the eggs are in the incubator, only do it to eggs marked as viable.Q: What is the right way to position eggs during candling?A: The Recommended way is that the fertilized eggs position should be in such a way that the more pointed end is facing upwards.However, there are no restrictions when it comes to candling. Position the egg on top of the candler in whichever position that makes it easy to see inside.Q: What if I mark the eggs during candling?A: You may want to mark the egg on the day you have candled it. There is nothing wrong with that. However, use the right marker, preferably a pencil or a crayon. Any other thing such as marker pen can penetrate the egg and interfere with embryo development.