The first mass production LED module for Hopup. You can change your Hopup chamber to be a tracer unit easily. (A MadBull Ultimate Hopup needed.) Features: Voltage: 7.5-12.6v Life 10000+ hrs 1 Watt 8 Blue SMD LED (O.C.) Note: Once pluged with battery, LED module will start consume battery (1 watt.) You have to unplug the battery to turn it off.