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- Estimated life of 18.3 years based on 3 hours use per day
Lighting Facts Per Bulb |
| Brightness 20000 lumens |
|
Estimated Yearly Energy Cost $48.18
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
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Life
Based on 3 hrs/day18.3 years
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Light Appearance
WarmCool
3600 K
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| Energy Used400 watts |
Sylvania Metalarc 400W Safety Coated Protected Metal Halide BT-37 Bulb
- Use in Base-Up applications only
- Mogul (E39) Base
- Neutral White Color
- Ratged for use in open fixtures
- Safety coating contains glass shards in bulb breaks
Brand | Sylvania |
Product Line | METALARC PRO-TECH |
Energy Used
A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
| 400 Watts |
Base
The end (or ends) of the lamp that fits into the socket.
| Mogul (E39) |
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".
| BT-37 |
Bulb Color
The color of the light produced by a bulb
| 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.
| 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).
| 3600 |
Brightness (Lumens)
A rating of the initial 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.
| 20000 |
Bulb Finish
The surface finish of a bulb, which may affect the quality of the light emitted.
| Clear |
Bulb Technology
The technology implemented by the bulb, e.g. incandescent, halogen, LED
| Metal Halide |
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.
| 20000 |
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.
| 8.3 |
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.
| 3.5 |
Ballast Code
The ANSI (American National Standards Institute) code that the ballast conforms to. For HID bulbs, indicates that the bulb is compatible with ballasts that conform to that standard.
| M59 |
Coated
The bulb has been safety coated.
| Yes |
Contains Mercury (Hg)
Contains some level of the element Mercury. Typically, bulbs containing Mercury display the symbol 'Hg'.
| Yes |
Not For Sale In
This bulb falls within State-defined sales restrictions for the listed States.
| WA |