How to Choose your HID Bulb

HOW TO CHOOSE YOUR HID BULB

Lamp Selection - Factors to Consider

• CRI is a lamps ability to render an objects true color based on a scale of 100, with a 100 being a incandescent lamp. 
• Mercury Vapor has a CRI of 22-55, Color Temp between 3000-5900K, and light emitted has a bluish-green hue. 
• Metal halide has a CRI of 65-93, Color Temp between 2900-6000K, and is best the best white light of all HID light sources. 
• High Pressure Sodium has a CRI of 20-30, Color Temp between 1800-2600K, and gives off a light ranging from an orange hue to a pink hue. 
• Burning position is a position in which a lamp is designed to operate for maximum performance & safety. 
• BD - Base Down (bulb is vertically positioned with the metal base at the bottom, glass up)
• BU - Base Up (bulb is vertically positioned with the metal base at the top, glass hanging down)
• HBU - Base Up +/- 90° (bulb can be operated in a base up or horizontal position)
• HOR - Horizontal Burn (bulb is positioned with the metal base parallel to the ground)
• U - Universal Burn (bulb can be operated in any position)
• Open Vs. Enclosed Fixture Lamps 
• Open fixture lamps include a glass envelope to protect in the case breakage under high pressures.
• In an enclosed fixture lamp, a fixture lens takes place of a glass envelope in an event of breakage.

Probe Vs. Pulse Start

Probe start technology uses an ignitor inside the lamp to start the lamp. 

 A pulse start system adds a separate ignitor component that is pared with the ballast rather than inside the lamp. These system changes allow a Pulse start system to provide improved efficiency and performance.

Common benefits of pulse start equipment include:

– Greater efficacy & energy savings

– Superior color rendition

– Quicker restrike

– Improved lumen maintenance

– Reduced color shift over life

– Colder starting temperatures

– Longer lamp life

– Faster warm-up

• HID bases are designed by a letter and a number. The number is the diameter of the base by eights of an inch. 
• The MOL or Maximum Overall Length is measured in inches. 
• Make sure you check the compatibility of the ballast with your HID lamps.
• Mercury lamps are compatible with mercury ballasts and metal halide, but not high pressure sodium.
• Metal Halide lamps are only compatible with Metal Halide ballasts. 
• High Pressure Sodium lamps are only compatible with High Pressure Sodium ballasts.

How to interrupt a HID ordering code MH150/U/MED

MH) Type of HID Metal Halide 150) Watts U)Burn Position Universal MED) Base Medium