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The LED Authority

13 Watt 4-Pin Very Warm White Quad/Double Twin Tube CFL Bulb (Pack of 5)

SKU: G161017 | Ordering Code: 13W/Q/4P/27K

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Product Highlights

  • Estimated life of 9.1 years based on 3 hours use per day

Lighting Facts Per Bulb

Brightness 900 lumens
Estimated Yearly Energy Cost $1.57
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
Based on 3 hrs/day9.1 years
Light Appearance
2700 K
Energy Used13 watts

Greenlite brand 13 Watt plug-in compact fluorescent bulb with G24q-1 base.

  • Warm white color perfect for creating a more inviting atmosphere

  • Value - light interior spaces efficiently and at a competitive price

Full Specs


Greenlite Corp.

Energy Used

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


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

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
Double Twin Tube

Bulb Color

The color of the light produced by a bulb
Bulb Color
Warm White


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.

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)

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.
Brightness (Lumens)

Bulb Technology

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

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)

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)

Contains Mercury (Hg)

Contains some level of the element Mercury. Typically, bulbs containing Mercury display the symbol 'Hg'.
Contains Mercury (Hg)


A General Electric brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
Osram Sylvania
Customers Also Viewed
Customer Reviews

Prompt, Arrived in good Shape


Ordered on line, bulbs were delivered a few days later. Installed easily and works fine. No Shipment damage




as expected, the product works very well


As an overhead fixture in our kitchen, the light takes three light bulbs. So far, we cannot cavil at the performance,-no flickering, dimming or overheating has been the source of annoyance with the bulbs.

Nicholas Berkoff

Bethesda, MD


great puchase


use for outdoor lights. Company was great to deal with


easthampton ny


13 Watt 4-Pin Very Warm White Quad/Double Twin Tube CFL Bulb

4.7 3


Q & A
Does this bulb come with the base?

This product is one piece and includes the base.

Product Support

Would this product be compatible with a Coleman battery charged lantern model 5329? This is the classic 8D lantern used for camping. Thanks.


After reviewing the Coleman website they do not provide the specifications of the replacement bulb, other than it being a 13 watt, u-tube bulb. There are two different pin types available for a 13 watt u-tube (or double twin tube) bulb. If the lamp that is currently in the lantern is 4 pins, then yes, this would be the correct replacement. If the lamp has 2 pins, then you would need to replace it with a 2 pin bulb. We do have both versions on our website and can be found on the following link.

Product Support