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The Business Lighting Experts

Keystone Non-Dimmable 35W 120-277V 5000K A-25 LED Bulb, Enclosed Fixture Rated, E39 Base

SKU: KT-LED35A25-O-EX39-850 | Ordering Code: KT-LED35A25-O-EX39-850  | UPC: 843654122939

$39.99each
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Color Temperature (Kelvin)
Color Temperature Guide 3000 4000 5000

Product Highlights

  • Energy efficient replacement for a conventional 300 watt bulb
  • Energy efficient replacement for a 150 watt HID bulb
  • Estimated life of 45.7 years based on 3 hours use per day
  • No lead or mercury means easy and environmentally safe disposal
Description

Lighting Facts Per Bulb

Brightness 4850 lumens
Estimated Yearly Energy Cost $4.22
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
Life
Based on 3 hrs/day45.7 years
Light Appearance
WarmCool
5000 K
Energy Used35 watts
  • DLC
    Listed

Keystone non-dimmable 35 watt 120-277V 5000K A23 LED bulb with E39 base generates as much light as a 150 watt HID lamp or a 300 watt incandescent. Ideal for bollards, post tops and low bay applications.

Ballast must be bypassed when present.

  • Can be installed base up or base down 
  • Direct line voltage 120-277V - Not compatible with ballasts
  • Omnidirectional - 330° beam angle
  • Metal heat sink for optimal heat dissipation
  • Frosted diffuser maintains low glare
  • Very long life - Rated to still put out 70% as much light after 50,000 hours of operation as it does when brand new

Do not “hot swap” this bulb. Turn off fixture before replacing existing bulb.

Full Specs

Brand

Keystone

Model Number

KT-LED35A25-O-EX39-850
Energy Used

Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
 
35 Watts
Incandescent/Halogen Equivalent

Incandescent/Halogen Equivalent

The wattage value of an incandescent or halogen lamp of similar brightness.
 
300 Watts
HID Equivalent

HID Equivalent

The wattage value of a High Intensity Discharge (HID) bulb of similar brightness.
 
150
Volts

Volts

A measure of "electrical pressure" between two points. The voltage specification of an incandescent lamp is the electrical "pressure" required to drive it at its designed point. The "voltage" of a ballast (e.g. 120 V) refers to the line voltage coming from the power source and is connected to the ballast.
 
120-277
Base

Base

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

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".
 
A-25
Bulb Color

Bulb Color

The color of the light produced by a bulb
 
Bright White
CRI

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.
 
80
Color Temperature (Kelvin)

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).
 
5000
Brightness (Lumens)

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.
 
4850
Bulb Finish

Bulb Finish

The surface finish of a bulb, which may affect the quality of the light emitted.
 
Frosted
Bulb Technology

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
 
LED
Average Rated Life (hr)

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.
 
50000
Operating Temperature (°F)

Operating Temperature (°F)

The ambient temperature in which the product can safely operate.
 
-4 to 113
Beam Angle (°)

Beam Angle (°)

The width of a light beam, expressed in degrees. The beam angle is often part of the ordering code for reflector lamps. For example, a 50PAR30/HIR/NFL25 is a 50-watt PAR30 narrow flood lamp with a beam angle of 25 degrees.
 
330
Bulb Power Type

Bulb Power Type

Defines how a lamp is powered, whether it needs a ballast or not, or can use either
 
Ballast Bypass
Length (in)

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.
 
6.9
Diameter (in)

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.
 
3.7

Warranty

5 year limited
Damp Location

Damp Location

Suitable for an exterior or interior location that is subject to condensation of moisture in, on or adjacent to electrical equipment
 
Yes
DLC Listing

DLC Listing

Approved by the DesignLights Consortium, a collaboration of utility companies and regional energy efficiency organizations. Approved products meet the consortium's standards for ensuring high-quality, energy-efficient lighting design. There are two levels, Standard and Premium
 
Standard
DLC Code

DLC Code

Code identifying the product in DLC (DesignLights Consortium) listings.
 
POQ0AK7J
Rated for Fully Enclosed Fixtures

Rated for Fully Enclosed Fixtures

Not all LED bulbs are suitable for use in enclosed fixtures, due to the amount of heat they generate. Rated bulbs have been tested and approved as safe for enclosed fixtures.
 
Yes
Not For Sale In

Not For Sale In

This bulb falls within State-defined sales restrictions for the listed States.
 
CA