The Rcom Egg Candler provides 120 Lumens of cool light for the ultra safe lamination of your eggs. Like all Rcom products, this Egg Candler is superbly made from the highest quality material for years of usage. --- LED 1W Cree Q5 ---Brightness 120 Lumens ---Easy on and off button ---Batteries: 3 AAA Batteries (not included) ---Working range 100M ---Working Time: 240 Minutes with super Alkaline batteries ---Size 111mm x 30mm.