OSRAM SYLVANIA ELH 300 W Halogen Standard Bulb

Halogen MR16 spotlight for stage and studio

The OSRAM SYLVANIA ELH is a 300 watt tungsten halogen lamp built on an MR16 reflector with a GY 5.3 two-pin base. It runs on 120 volts and delivers 525 lumens at a 3350 kelvin colour temperature with a colour rendering index of 100. This bulb is intended for fixtures that accept the GY 5.3 base and can handle the 300 watt draw.

Practical limits of the GY 5.3 halogen interface

The rated life is only 35 hours so the lamp must be treated as a short-life source for critical lighting tasks. Output is fixed at 525 lumens and the 3350 kelvin warmth cannot be adjusted. The 300 watt consumption generates significant heat requiring fixtures rated for that load and adequate ventilation. No dimming capability or alternative colour temperatures are specified.

Installation notes and common issues

Insert the two-pin base straight into the GY 5.3 socket until fully seated; avoid touching the quartz envelope with bare fingers because oils shorten the already brief 35 hour life. Verify the fixture is rated for 300 watts at 120 volts before powering on. The most frequent problems are premature burnout from voltage spikes, loose pin contact causing flicker and overheating in enclosed housings without sufficient airflow.