GE q50mr16fccfrv-cd, 50w, 12v, reveal quartz halogen flood light, exclusive constant color technology, covergard glass, 2 pin gx5.3 base, c-6 filament design, 1.88" mol, 3,000 hours rated life, protective cover for use in open fixtures, protects against uv fading, neodymium baked into glass filtering out dull yellow rays, lasts 2 years based on 4 hours use per day.