400W BT37 Mercury Vapour Lamp, Clear

Standard EYE 400W BT37 Clear Mercury Vapour Light Bulb. Sold individually. H400WEYE #14942

Long life performance backed up by EYE's manufacturer warranty. Strong lamp construction- designed and built with all-weather glass, that withstands thermal shock and vibration. Nickel plated base threads ensure that the lamp will be easily removed from the socket after years of operation.

Mercury vapour lamps are mostly sold as replacements for existing installations. It is very rare to see new installations equipped with mercury vapour lamps. They can still be found in some manufacturing or industrial sites, utilities, roadway or parking, and landscape applications.

HID stands for High Intensity Discharge. These lamps produce light by means of heating a gas with an electric arc (as opposed to the incandescent lamp which produces light by electrically heating a solid wire). All HID light sources require auxiliary equipment (such as a ballast, capacitor, and/or ignitor) to provide the appropriate electrical values for starting and operating.