LED Indicators Amphenol LTW LED Indicators feature plastic or metal connector body material with IP67 waterproof protection and LED color options in red, blue, green, white, yellow, and red / green. These robust receptacles with an LED offer a 4V operating voltage, 80mW to 120mW maximum power dissipation, and 100mA peak forward current. Amphenol LTW LED Indicators operate in a temperature range of -20°C to +105°C for the metal variant and -20°C to +85°C for the plastic version.