Specification Brand : Laserlands BulletPoint1 : Wavelength: 660nm±10nm BulletPoint2 : Output: <5mW (Class IIIr) BulletPoint3 : Red Line Brightness Level: Level 6 BulletPoint4 : Focusable BulletPoint5 : Working Voltage: 5V/12V DC for option BulletPoint6 : Size: Dia. 18mm BulletPoint7 : Manufacturer: Wuhan RLTC Technology Co., Ltd. Color : 5v Dc With Adapter ExternallyAssignedProductIdentifier : 9002719040842 ExternallyAssignedProductIdentifier1 : 0712201503876 ExternallyAssignedProductIdentifier2 : 712201503876 GpsrSafetyAttestation : 1 IncludedComponents : USB Cable, US adapter, EU adapter, mount for option ItemName : 660nm Red Line Light Module Projector Focusable Locator Generator for Cloth Fabric Alignment Dia.18mm (5V DC with Adapter) ItemPackageDimensions_Height : 57.15 centimeters ItemPackageDimensions_Length : 8.89 centimeters ItemPackageDimensions_Width : 12.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : line-lasers Manufacturer : Laserland Material : Aluminum Material1 : Carbon Fiber Material2 : Aluminum Material3 : Acrylic ModelName : 1875A-660L ModelNumber : 11061550 NumberOfItems : 1 OperationMode : Manual PackageLevel : unit PartNumber : 73028585138516292 PowerSourceType : dc ProductDescription : Product Description Model: 1875A-660L Manufacturer: Wuhan RLTC Technology Co., Ltd. Dia.18mm 660nm Red Line Focusable Module Wavelength: 660nm±10nm Output: <5mW (Class IIIr) Red Line Brightness Level: Level 6 Working Voltage: 5V/12V/24V DC for option Shape: Line Duty cycle: 2 hours on, 5 minutes off Size: Dia. 18mm Note: The modules are tested and the output power are measured by power meter before sending out. Please don't compare the power of this one with a none-measured module. If you doubt the output, please have the module you recieved checked by power meter. If there is any problem, please feel free to contact us. We will solve the problem asap. We have US and EU standard adapter for option.