This feature packed candler is designed to meet or exceed USDA standardsfor a human egg candling light for both brown and white eggs.It has three brightness settings and an adjustable mountingbracket meaning you can really customize your egg candlerset up! Two different light sources allow you to candle theeggs and inspect the outside of the eggs to increase gradingefficiency. This means that you can easily inspect the eggs forblood spots and cracks at the same time! This candler doeswork great for eggs that are being incubated. but is intendedfor grading eggs for eating. LED lights remain cool duringcandling. This candler plugs into a 120V outlet.