These are part of my low cost range of 1 watt power LED emitters. They produce around 75 lumens of green light (around 525nm) at 350mA. They are supplied ready to go on a standard star PCB, just attach them to a suitable heatsink and you're done.
Forward current: 350mA continuous
Forward voltage: 3.2 - 3.4V
Luminous flux: 75 lumens typical
Beam angle: 120°