Yescom 5w LED Egg Candler Tester White Light for Incubator Brooder Chicken Hen Quail Poultry Candling 5W LED Egg Candler, skid-proof, water-proof designed, "O" ring sealed 3-mode adjustable brightness, high/low/strobe Internal wiring applies the high efficient booster circuit Lighting Range: 656ft to 1640ft (200m to 500m) Suitable for observing, illumination, self safety, searching, hunting, cycling, climbing, camping, walking or other outdoor actions at dark place