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The LED Authority

Philips 30W 36in T12 Cool White Fluorescent Tube

SKU: 272427 | Ordering Code: F30T12/CW/RS/ALTO  | UPC: 046677272425

$2.79 per Bulb
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Product Highlights

  • Estimated life of 16.4 years based on 3 hours use per day

Lighting Facts Per Bulb

Brightness 2250 lumens
Estimated Yearly Energy Cost $3.61
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
Based on 3 hrs/day16.4 years
Light Appearance
4100 K
Energy Used30 watts

This 3 feet T12 bulb can fit in spaces that a traditional 4 foot lamp couldn’t. Be sure this is the bulb needed for the fixture before purchasing. The ALTO technology this bulb offers provides less mercury than traditional bulbs, making it more environmentally friendly. The cool white color will commonly be found in kitchens in under cabinet lighting, bathrooms, offices and retail spaces, making it universal across many applications.

Full Specs


Philips Lighting

Product Line


Model Number


Energy Used

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


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

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

Bulb Color

The color of the light produced by a bulb
Bulb Color
Cool 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 Finish

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

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)

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)

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.
10357 - F30T12/CW/RS

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
Osram Sylvania
23476 - F30T12/CW/RS
Customer Reviews

Does the Job


closet light


Greenwich, CT


Yeah....Just what we ordered. Quick and efficient shipping.


Inside use... Great product and just what we needed.


On the Beach, Fl


I like the company - the product is only ok


The bulbs are fine, but some of them fail pretty quickly


Danville, ca


bulbs not at big box stores


cannot find these at local stores, must have T 12 4100 K temp bulbs to light Florida dome systems , or replace all fixtures ...not my option .local big box only carry " warm " 2700 K ..not good. Thanks !

well lit guy

Brooksville, Fl.


This product lights up the room.


These T12 cool light bulbs are great for the kitchen and for my computer room. These rooms have recessed lighting and are difficult to change bulbs. These Bulbs give good light and last a long time.


Grand Prairie, TX


No complaints.


Good product for office environment.


Chelmsford, MA


"I would buy this product again and agai


They are bright...


Manteca, CA


Philips 30W 36in T12 Cool White Fluorescent Tube

4.6 7


Q & A
Is there an LED replacement for this bulb?


Unfortunately the T12s are going phased out. Try looking through the LED T8s by matching the length. It should be plug and play after that, but make sure you are using a Instant-start ballast.


I bought t12 cool wht. for my garage but my closet bulb went out,can I use in closet,it says garage or large areas


Yes, if it is a compatible bulb to your fixture, you can use it.