Feature 1 It can help you to see the contents in eggs and you can checkwhether the eggs are developing properly. 2Equipped with cold light unit, aviod too heat to damage the eggs. Fit for usual kind of eggs like chicken egg, duck egg, goose egg use perfectly. 3This simple but professional device are designed for aquaculture use, with this simple tool you can know the incubation information more correctly and more easily. 4Lampshades of different sizes can display different types of eggs and can be changed at will. 5The egg can overheat during inspection, which can better protect the egg's incubation life. 6 Very simple to use by pressing the button of egg candler, energy-saving and convenient, perfect for lighting chicken, duck or goose egg in each incubation stage.SpecificationCondition: 100% Brand NewItem Type: Egg Tester LightMaterial: PlasticLength: Approx. 15cm / 5.9inWeight: Approx. 185g / 6.5ozPlug Type: US Plug 100-240V Frequency: 50/60Hz.w-e-text table td, .w-e-text table th{border: .5pt solid #000;};.w-e-text table{border: 1px solid #000 !important;}.w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid #000;};.w-e-text table,.wang-edit-text table{border: 1px solid #000 !important;}Package List1 x Power Plug1 x Egg Tester Light1 x Bird Lampshade1 x Chicken LampshadeNotePlease allow 1-3cm error due to manual measurement. Thanks for your understanding.