200W/250W/320W Metal Halide - ED28 Bulb Type

ED28 Metal Halide Lamp

Features:

• ED28 Bulb Type
• Mogul EX39 Base
• Clear or Coated Finish
• Color Rendering Index (CRI): 65-70
• 20000 Average Rated Hours
• 35000-44000 Lumens
• Color Temperature:  3700K or 4000K
• Operating Position: Base Up ± 15° for all bulbs except 200W bulb (Vertical ± 15°)
• 200W, 250W or 320W

Open Rated. UV Shield. Specified Burning Position. Mogul Base.

HID (High Intensity Discharge) Basics:

The operational concept of HID lamps are very similar to fluorescent lamps.  HID lamps include Mercury Vapor, Metal Halide, High Pressure Sodium/Low Pressure Sodium (SOX). 

• In an HID lamp, the electrical arc, gasses and metals are contained in the arc tube.
• Like fluorescents, HID lamps require a ballast to control the electrical current in the arc tube.
• HID lamps need a start-up time to reach their full brightness. This usually takes 5 to 10 minutes.

Metal Halide

• Uses metal halides of sodium iodide and scandium iodide
• Most popular and widely used in the HID category
• Used in general lighting as commercial/industrial/outdoor flood lighting where good color and high efficiency are desired

ANSI Code: M136/0 , M153/0 , M154/0

Models:

S4251 , S4252 , S4253 , S4254