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、Built‑in 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. <div class="wang-edit-text"><p class="wang-edit-text">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&nbsp;<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x LED Waterproof Indicator