OSRAM OSLON SX Series LEDs - Single Colour. The OSLON SX series of compact LEDs, from Osram Opto Semiconductors, have a ceramic SMD package with a silicon resin lens. The small size of these high flux LEDs makes the OSRAM OSLON SX LEDs ideal for use in space critical applications including: Signal lights, warning, or tail lights, decorative lighting and interior automotive lighting (e.g. dashboard backlighting).. Compact SMT ceramic package: 3 x 3mm Integrated silicon lens for: 60° beam angle