Specification BatteriesIncluded : 1 Brand : Stabila BulletPoint : REC300 Digital Receiver To Suit LAR200 & LAR250 BulletPoint1 : Direct Green Straight Line Laser - High quality straight green line laser, ideal for industrial application. 3~7 VDC operation. Dimensions: D0.393" x 1.496" (D10 x 38 mm). BulletPoint2 : Wave length: 520nm. Laser power output: Class I. (Update 02/26/2024 - The laser output (the brightness) is exactly the same as before. The reason why the Laser Class is changed now because according to the latest IEC 60825-1 regulations. Therefore, you see that its Class is changed from "Class II" to "Class I" now, even though the brightness is exactly the same as before.) BulletPoint3 : Direct Green Straight Line Laser. Direct Green Laser Diode for large temperature operation range. Laser beam is focused at 10 meters to generate best thin laser line from 5 meters to 20 meters. BulletPoint4 : This module has an integrated optic, direct green laser diode, and APC driver circuit. Mean time to failure(MTTF) 25°C: 10,000 hours BulletPoint5 : APC driver circuit enables constant Laser output power. Quartz cylindrical lens provide straight line. Fan Angle is more than 90 degrees. Laser Line Width : 3 +/- 0.5mm at 5 meters; 6 +/- 0.5mm at 10 meters. Notice: Laser modules are NOT laser pens. Laser modules are NOT supposed to be used for commercial use like normal laser pointers. 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 : Multicolor ExternallyAssignedProductIdentifier1 : 4005069169572 ExternallyAssignedProductIdentifier2 : 04005069169572 IncludedComponents : 1 x Stabila REC300 Digital Receiver To Suit LAR200/250 and LAR300/350 1 x Levelling Rod Bracket ItemDisplayWeight : 0.1 kilograms ItemName : Stabila STBREC300 Laser Accessories ItemPackageDimensions_Height : 20.4 centimeters ItemPackageDimensions_Length : 9.7 centimeters ItemPackageDimensions_Width : 15.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : line-lasers Manufacturer : Stabila Material : Aluminum ModelName : REC 300 Digital Receiver to suit LAR200 & 250 and LAR300 & 350 ModelNumber : 16957 NumberOfItems : 1 OperationMode : Automatic PackageLevel : unit PartNumber : 16957 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.