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250 Watt, Clear BT28 Safety Coated Metal Halide Lamp. WARNING: THIS BULB IS NOT TO BE USED NEAR LIVE BIRDS.

SKU: SGB4053 | Ordering Code: MH250U-PTFE

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Product Details

Brand

Sylvania

Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
 
Energy Used
250 Watts

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".
 
Bulb Shape
BT-28

Base

The end (or ends) of the lamp that fits into the socket.
 
Base
Mogul (E39)

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
 
Diameter (in)
3.5

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
 
Length (in)
8.31

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
 
Average Rated Life (hr)
10000

Brightness (Lumens)

A rating of the inital light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
 
Brightness (Lumens)
13500

Finish

Light bulbs: the coating applied to the bulb causing light to be emitted in certain colors or color temperatures (see Color Temperature). Popular finishes include clear, frosted, colors (amber, blue, green, red, etc.) as well as color temperature designations ranging from warm white (2700K) to natural daylight (6500K). Fixtures: the decorative finish of the item.
 
Finish
Neutral White

CRI

Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.
 
CRI
65

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
 
Color Temperature (Kelvin)
4000K

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
 
Bulb Technology
Metal Halide

Product Notes: WARNING: THIS BULB IS NOT TO BE USED NEAR LIVE BIRDS. Safety Coating Produces Trace Amounts of Gas That Is Known To Be Fatal to Birds.

Description
 
Reviews
 
Q & A

EncapSulite International brand 250 Watt clear Safety Coated metal halide lamp with mogul base.

  • Universal Burning Position

  • Safety Coating contains glass in the event of breakage

  • Neutral white color very popular with many businesses

Metal Halide Ballast (ANSI Code M58) and ENCLOSED FIXTURE required

WARNING: THIS BULB IS NOT TO BE USED NEAR LIVE BIRDS. Safety Coating Produces Trace Amounts of Gas That Is Known To Be Fatal to Birds.

 
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