Specification Brand : ALZO digital Brightness : 1300 BulletPoint1 : 27W CFL photo bulbs with daylight color temperature of 5500K, 120V, CRI of 91; pack of 4 BulletPoint2 : Brightness of this bulb is equivalent to a 60W incandescent (regular) bulb BulletPoint3 : This is a LARGE bulb that might not fit standard household lamps, see diagram above; fits all medium-base E27/E26 sockets BulletPoint4 : Dimensions: Length: 6.5 inches; diameter: 2.5 inches; energy-saving bulb with about 10,000 hours life BulletPoint5 : Important: ALZO CFL bulb life is based on the bulb in an open air fixture with sufficient ventilation; when ALZO bulbs are installed in fixtures that lack adequate ventilation, the life of the bulb will be greatly reduced. ColorRenderingIndex : 91 ColorTemperature : 5500 kelvin ConnectivityTechnology : Normal bulb ControllerType : Push Button ControlMethod : application CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 837654014325 ExternallyAssignedProductIdentifier2 : 0837654014325 ExternallyAssignedProductIdentifier3 : 00837654014325 IncludedComponents : 2x LB1000 UV-C Replacement Bulbs IndoorOutdoorUsage1 : outdoor IndoorOutdoorUsage2 : indoor ItemDisplayDimensions_Length : 2.54 centimeters ItemDisplayWeight : 16 ounces ItemName : ALZO 27W CFL Photo Light Bulb 5500K, 1300 Lumens, 120V, Pack of 4 ItemPackageDimensions_Height : 22.7076 centimeters ItemPackageDimensions_Length : 13.589 centimeters ItemPackageDimensions_Width : 14.3002 centimeters ItemPackageQuantity : 1 ItemShape : Tubular(T) ItemTypeKeyword : fluorescent-tubes LightColor : Bright White LightType : CFL Manufacturer : ALZO Digital Material : copper ModelNumber : 1069-55-04 NumberOfItems : 4 PartNumber : 1069-55-04 PowerConsumption : 27 watts PowerSourceType : Corded Electric ProductDescription : Crisp, bright white light ideal for reading and tasks that require visual accuracy; CFL bulb has natural daylight-balanced color temperature of 5500K; pack of 4 The "Joyous Light" bulbs Chase away winter blues, alleviates the effects of Seasonal Affective Disorder S.AD; also good for starting plant growth his is a large bulb that might not fit standard household lamps, see diagram above; 9-inch ALZO lamp harp will fit this bulb; bulb fits all medium base E27/26 socket; Dimensions: Length: 6.5 inches; Width (Diameter): 2.5 inches; Width (diameter) of base: 1 inch. Generates very little heat, and all ALZO Joyous light bulbs are flicker-free; energy saving, uses about 1/4 of the energy of a comparable Tungsten bulb, and has about 10,000 hours bulb life Renders colors accurately for photography This is a large bulb that might not fit standard household lamps; see diagram above About 10,000 hours bulb life Flicker-free Set of four (4) 27W compact fluorescent photo light bulbs, super bright with 5500K color temperature and 1300 Lumens output, and CRI of 91. Their brightness is equal or very close to daylight, which renders colors of objects accurately for photography. This is an energy-saving bulb with about 10,000 hours bulb life. Fits all medium-base E27/E26 sockets. Pack of 4. Dimensions: Length: 6.5 inches; diameter: 2.5 inches; diameter of socket: 1 inch. Important: ALZO CFL bulb life is based on the bulb in an open air upright orientation. When bulbs are installed in fixtures that lack adequate ventilation, the life of the bulb will be reduced. If an ALZO CFL bulb is installed in an overhead recessed light fixture with the bulb glass below the base, the life of the bulb will be greatly reduced. Is a photography light bulb different from a general use bulb? More Features Fits all medium base sockets E26/E27 Energy saving, uses about 1/4 of the energy of a comparable Tungsten bulb Generates very little ProductSiteLaunchDate : 2008-02-29T00:00:00.000-08:00 Size : 2 Count (Pack of 1) SpecificUsesForProduct : Germ Guardian Air Sanitizers SpecificUsesForProduct1 : Photography SpecificUsesForProduct2 : Plant Growing SupplierDeclaredDgHzRegulation : not_applicable Theme : air_sanitization UnitCount : 1 UnspscCode : 39101600 Voltage : 120 volts Wattage : 27 watts WhiteBrightness : 1300 lumens