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18 Watt GU24 Base CFL 3500K

TCP 03598 33118SP35K 3500K GU24 CFL Spring Bulbs
Our price (Before qty discounts*): $3.63

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1 to 3$3.63
4 to 6$3.53
7 or more$3.45

In stock
Item Number: 3598
Manufacturer: TCP
Manufacturer Part No: 33118SP35K - TCP
Operating Voltage: 120 Volt
Technology: CFL
Watts: 18
Lumens: 1200
Shape: Spiral
Color Temp: 3500K
CRI (Color Rendering Index): 82
Base Type: GU24
Common Name of Color: Bright White
Dimmable: No
Incandescent Replacement: 75 Watt
Product Specifications - Quick Reference
Lamp Wattage:
18 Watts
2.3" W x 3.8" H (MOL)
Incandescent Equivalent:
Initial Lumens:
75 Watts
1,200 Lumens
Rated Life:
15 Month Limited
10,000 Hours
Light Color:
Technical Consumer Products (TCP)
The U.S. Environmental Protection Agency (EPA) and the Department of Energy (DOE) named Technical Consumer Products, Inc (TCP) as a 2010 ENERGY STAR Partner of the Year for its outstanding contribution to reducing greenhouse gas emissions by manufacturing energy-efficient products and helping to educate consumers about those products. TCP’s accomplishments were recognized at an awards ceremony in Washington, D.C. on March 18, 2010. Green Electrical Supply is proud to offer the highest quality products from leading manufacturers – Names You Know and Trust.
Energy Star Qualified
Built with World Class phosphor, which insures high lumen output and excellent lumen maintenance, this ENERGY STAR Qualified, UL Listed and C-UL Listed, 18 watt GU24 base compact fluorescent light bulb has a Color Temperature of 3500K and a Color Rendering Index (CRI) of 82. As a reference point, the warm yellowish glow of an incandescent light that you are used to is about 2700-3000 Kelvin (K).


The TCP 18 watt GU 24 base cfl light bulb, item number 33118SP35K, fits fixtures with the GU24 socket. They are just 2.3 inches wide and 3.8 inches MOL. They incorporate an electronic ballast for instant-on, flicker free operation. These 120 volt 50/60 Hertz GU24 bulbs consume just 18 watts of energy and produce the equivalent light output of a 75 watt incandescent bulb (1,200 Lumens). Click here to see the complete TCP GU24 CFL Spring Lamps Specification Sheet.


These GU24 CFL bulbs have a 10,000 hour average rated life and carry a 15 Month Limited Warranty. The minimum starting temperature is -20 degrees Fahrenheit and the maximum operating temperature is 160 degrees Fahrenheit. The TCP GU24 spring lamp requires an enclosed fixture for outdoor use. This GU24 bulb is not intended for use with emergency exit luminaires or emergency exit lights, photocontrols, electric timers or dimmers.


Typical Applications


Typical applications for a GU24 spring (also called spiral bulb, twist bulb, twisty bulb or curly bulb) cfl light bulbs include table and floor lamps, recessed lights, corridor light, outdoor lighting and sconce fixtures in residential, office, retail, restaurant, school, hospital and hotel/motel locations.

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