Fluorescent lamp question

[Alex]

I have a F15T8 lamp in my desktop lamp. It's only 15W. Does anyone know if they make the same type of lamp bigger than 15W? All stores I checked have this type of lamp in 15W only.

Thank, Alex

[Joseph Meehan]

Well by definition a F15T8 is a "F" fluorescent lamp "15" 15 watts and the "T8" describes it's size. You can't just change wattage lamps is a given fixture because the fixture contains a "ballast" or other device to supply the lamp with the proper current and voltage. You need a new desktop lamp. Take a look at full spectrum lamps like:

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[RBM]

The physical size and wattage of the lamp may be fixed, however lumens is the amount of light produced by the lamp. You may be able to find a lamp of that description that puts out more lumens then the one you have. Go to a site like

and look up all the lamps of that type and compare "initial lumens"

[buffalobill]

around 10 to choose from including blacklights at grainger where you will find excellent product descriptions. your bulb is usually 18" long replace it with the color of light you like warm versus cool white, look up "CRI", perhaps choose daylight, and the lumens you want. your used bulb may also be dimmer than a brand new one, but now you can choose a bit brighter one as well. preheat type may use a rocker switch on your lamp. try:

go look at lighting and the lampmatch at: such as: "Lamp,F15t8/Spx30,15 W Fluorescent Lamp, Standard, Lamp Designation F15T8/SPX30, Wattage 15, Lamp Tone Enhanced Warm, CRI 86, Rated Average Life Hours 7500, Color Temperature 3000, Initial Lumens 1000, Mean Lumens 950, Starter Type Preheat, Lamp Shape T8, Base Medium Bipin (G13), Lamp Length 18 Inches, Diameter 1 Inch/26 Millimeters, Product Contains Mercury, Refer To Applicable State Regulations for Disposition After Use Grainger Item # 5V878 Price (ea.) $17.02" and such as: "

Alex wrote:

they make the

in 15W only.