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The LED Authority

Philips 40 Watt, 48 Inch T12 Black Lite Fluorescent Bulb

SKU: 391532 | Ordering Code: F40T12/BL Discontinued (USE GE10526)

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Product Highlights

  • Estimated life of 18.3 years based on 3 hours use per day

Philips 40 Watt T12 Actinic Radiation "Blacklight" fluorescent lamp.  Higher wattage for more power and light.

  • Produces UV-A Light often used for Chemical Processing and Insect Trap Applications


Full Specs


Philips Lighting

Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
Energy Used
40 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

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.
10526 - F40BL

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
Osram Sylvania
24922 - F40/350BL

Product Notes: Main Applications: Reprography, Photopolymerisation (aka Photopolymerization), Insect Traps. UV-A radiation 350-400nm.

Customers Also Viewed
Customer Reviews

It has been working well ! We love it !


I has been used in nail salon industries , and It works well , We like it , We will buy it as long as you carry it


Pomona, CA

Dont look at the light


well packed




40 Watt, 48 Inch T12 Black Lite Fluorescent Bulb

4.5 2


Q & A
can i use a regular T12 Ballasts with this 40 Watt, 48 Inch T12 Black Lite Fluorescent Bulb ?

This bulb does not require a special ballast and can be used with a standard 40 Watt, T12 ballast.

Product Support