Features: 1) Constant light output, high luminous efficiency2) Excellent color rendering (RA=100) and long life3) Universal burning position for type up to 500W, above 500W should be horizontal4) Should be used in luminaries with glass cover5) Suitable for general lighting, task lighting and flood lighting in homes, offices, shops, museums, billboards, car parks, construction sites and security lighting6) UV-stop version, the use of special UV-stop quartz can stop the emission of UV rays