The LHUV-0405-0550 from Lumileds is a LED with Forward Voltage 2.5 to 3.5 V, Forward Current 1000 mA, Wavelength 405 to 410 nm, Operating Temperature -40 to 135 Degree C, Storage Temperature -40 to 135 Degree C. More details for LHUV-0405-0550 can be seen below.