LED Indicators, 6.35mm MountSnap-in fixing requires no additional hardwareSuper bright types with tinted diffused lens355mm long wire lead connectionUltra bright types with water clear lens3 leaded tri-colour types with milky white diffused lensHousing meets UL94V-07.41mm Black housing enhances LED contrastMounting hole size: 6.35mmNoteThese LED indicators should not be operated without a suitable series resistor or other current-limiting device