Feature:1. Professional IP66 waterproof grade designed with waterproof sealing rings to ensure high efficiency work.2. Nickel plated brass/stainless steel material, which are not easy to oxidize, waterproof and flame retardant.3. Builtin waterproof sealing rings using flame retardant base to ensure more reliable use and maximum durability.4. LED Light source of the indicator light ensure high brightness and effective excellent lighting indicator.5. Indicator light has no distinguish of positive and negative pole, easy and convenient for installation.Specification:Item Type: LED Waterproof IndicatorMaterial: Nickel plated brass/stainless steel Color: Red Light Source: LEDOptional Working Voltage: 3V 5-6V 12V 24V 220V3C Rated Voltage Range: 36V and belowNote: Indicator light has no distinguish of positive and negative pole .Package List:1 x LED Waterproof Indicator