Specification Brand : Laserland BulletPoint : Spectra Precision Grade Laser Level Charger LL100 LL300 LL400 LL500 GL412 GL422 Q102734 BulletPoint1 : Wavelength: 520nm±10nm BulletPoint2 : Focusable BulletPoint3 : Material: Aluminum BulletPoint4 : Working Voltage: 5V/12V/24V DC for option BulletPoint5 : Output: <5mW (Class IIIr) BulletPoint6 : Green Line Brightness Level: Level 5 BulletPoint7 : Size: Dia. 16mm BulletPoint8 : Application: Wood Stone Fabric Alignment BulletPoint9 : Manufacturer: Wuhan RLTC Technology Co., Ltd. Color : 5v Dc With Adapter ExternallyAssignedProductIdentifier1 : 0712201503999 ExternallyAssignedProductIdentifier2 : 712201503999 IncludedComponents : for option ItemName : 520nm Green Light Line Module Projector Focusable Locator Generator for Wood Stone Fabric Alignment Dia.16mm (5V DC with Adapter) ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : line-lasers Manufacturer : Laserland Material : Aviation Aluminum ModelName : 1668-520L ModelNumber : 1668-520L NumberOfItems : 1 OperationMode : Manual PartNumber : Q102734 PowerSourceType : dc ProductDescription : Product Description 520nm Green Light Line Module Projector Focusable Locator Generator for Wood Stone Fabric Alignment Dia.16mm Wavelength: 520nm±10nm Output: <5mW (Class IIIr) Green Line Brightness Level: Level 5 Working Voltage: 5V/12V/24V DC for option Shape: Line Duty cycle: 2 hours on, 5 minutes off Size: Dia. 16mm 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.