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Screw in Compact Fluorescent bulbs have an integrated ballast. Which means the transformer to light the bulb is already built into the unit. Just replace the incandescent, or old compact fluorescent light bulb and screw in the new one.
Block Lighting is in business to provide our customers with not only the products they need but also with the expertise today lighting environment demands. Our complete line if light bulbs includes, Compact Fluorescents, Halogens, Metal Halides, High Pressure Sodiums, Linear Fluorescents, Incandescents, and LEDs. Anything we left out... we also sell. Call us if you have questions: 800-237-9500
Our Price: $4.25
SKU: XA-FE-IIS-30W/64K
Stock Status: In Stock
Manufacturer: Longstar
Spiral Bulb Shape,E26 Base,30 watt 6400K Compact Fluorescent Medium Base Spiral
Our Price: $8.55
SKU: XA-R40 FE-RSF-30W/50K
Stock Status: In Stock
Manufacturer: Longstar
R40 Bulb Shape,E26 Base,30 watt R40 5000K Compact Fluorescent Medium Base R40
Our Price: $3.55
SKU: XA-FE-IIS-23W/27K
Stock Status: In Stock
Manufacturer: Longstar
Spiral Bulb Shape,E26 Base,23 watt 2700K Compact Fluorescent Medium Base Spiral
Our Price: $5.85
SKU: XA-FE-R40-23W/50K
Stock Status: In Stock
Manufacturer: Longstar
R40 Bulb Shape,E26 Base,23 watt R40 5000K Compact Fluorescent Medium Base R40

Our Price: $11.93
SKU: XA-FE-US-55W/50K
Stock Status: In Stock
Manufacturer: Longstar
Spiral Bulb Shape,E26 Base,55 watt 5000K Compact Fluorescent Medium Base Spiral
Our Price: $6.26
SKU: XA-R30 FE-RSF-20W/41K
Stock Status: In Stock
Manufacturer: Longstar
R30 Bulb Shape,E26 Base,20 watt R30 4100K Compact Fluorescent Medium Base R30
Our Price: $7.06
SKU: XA-FE-G40-23W/27K
Stock Status: In Stock
Manufacturer: Longstar
G40 Bulb Shape,E26 Base,23 watt G40 2700K Compact Fluorescent Medium Base G40
Our Price: $7.06
SKU: XA-FE-G40-23W/50K
Stock Status: In Stock
Manufacturer: Longstar
G40 Bulb Shape,E26 Base,23 watt G40 5000K Compact Fluorescent Medium Base G40
Our Price: $18.77
SKU: XA-FE-IIIB-105W/27K
Stock Status: In Stock
Manufacturer: Longstar
Spiral Bulb Shape,E26 Base,105 watt 2700K Compact Fluorescent Medium Base Spiral
Our Price: $18.77
SKU: XA-FE-IIIB-105W/50K
Stock Status: In Stock
Manufacturer: Longstar
Spiral Bulb Shape,E26 Base,105 watt 5000K Compact Fluorescent Medium Base Spiral

Our Price: $13.95
SKU: ML01104
Stock Status: In Stock
Manufacturer: MaxLite
25 Watts

Our Price: $12.95
SKU: ML01110
Stock Status: In Stock
Manufacturer: MaxLite
25 Watts