i2Systems LightLink Marine Dimming ModuleLightLink LL 101 Marine Dimming Module Part #: LL 101 Operation is simple! Press and hold the momentary switch to initiate dimming cycle. Dimming cycle continues to dim as long as switch is engaged, ranging from 100% to approximately 5% intensity holding 2 seconds at each position before dimming the opposite direction. Briefly press and release momentary switch for on off operation. Specifications: Input Voltage: 6 36 Volt DC Dimensions: Width: 1. 5"