Miniature Sealed Pushbutton Switches - DPW Series Waterproof Thermoplastic case With or without a superbright LED Lead-free solderable Long mechanical life with a minimum of 1000000 cycles Note LED versions require a resistor to limit LED current to approx 20mA, typically 1,200 Ohms 0.5W, see Stock No 7078233 for 24V operation.