LED Module can change your Hopup chamber to be a tracer unit Features: Voltage: 7.5-12.6vLife 10000 hrs1 Watt8 Blue SMD LED (O.C.) Suitable for M4 / M16 Series Airsoft Electric Rifle AEG Note: Once pluged with battery, LED module will start consume battery (1 watt.) You have to unplug the battery to turn it off.
