How much electrical current does this module pull?

Our specification is less than 35 mA, but the typical pull is 25mA.for the VLM -650-28

Do I need a power source or does it take batteries?

You need a power source providing between 3 and 5 volts. A 5v smartphone charger, with the cable stripped apart and wired to the leads, will suffice. This is essentially how I did it. Just be sure to get your positive and negative leads wired correctly to avoid damaging the laser module. You may also have luck with a pair of 1.5v batteries connected in series, but I have not tested this myself (it should work, though).

How thin can the line be?

the Laser line width : 1.2mm at 1 meter(is design for a shorter distance)Quarton Customer Service Center

How visible, sharp, bright, & long would the line be at 2.25m away (on ceiling to shine on floor) in a dark room? (indoor safety line at night)

The standard Laser has a 60 degree lens. Therefore, at 2 inches away from the target the laser line will be 2 inches long and approximately 1 mm and width. The further you get from the target the longer the line will be in a one to one ratio with 60°. The line with will also diverge, so if I am 10 feet away, I will have a 10 foot long line however, even at his power level it will still be quite visible, depending on the ambient light in the room

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Economical Red Line Laser Module 650 nm, Class 1, 2.6~6 VDC, >60° Fan Angle, 0.3~1.8m Working Distance, VLM-650-28 LPT - Industrial Alignment Laser for Automation & Machine Vision

Economical Red Line Laser Module 650 nm, Class 1, 2.6~6 VDC, >60° Fan Angle, 0.3~1.8m Working Distance, VLM-650-28 LPT - Industrial Alignment Laser for Automation & Machine Vision

Product ID: 47965289

Details

Brand
Quarton
Colour
Red
Material
Brass
Product dimensions
26L x 9W
Style
VLM-650-28 LPT

⚡2.6~5 VDC low power operation

🔴650nm precise red wavelength

⏱️10,000 hrs MTTF industrial-grade durability

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔴 Elevate your precision game with the laser line that never quits!

INTEGRATED SMART OPTICS - Built-in wave lens, collimating lens, and APC driver circuit deliver consistent laser output power and superior line quality.
PRECISION RED LASER LINE - Optimized 650nm wavelength for sharp, clear line projection at 1m distance—perfect for professional-grade scanning and alignment.
RUGGED SOLID BRASS BUILD - Patented brass housing offers exceptional shock resistance and heat dissipation, built to withstand demanding industrial environments.
VERSATILE APPLICATION READY - Ideal for 3D scanning, metal, wood, textile, automotive, and medical industries—stay ahead with a laser module that adapts to your workflow.
UNMATCHED INDUSTRIAL RELIABILITY - Engineered for continuous 24/7 operation with a 10,000-hour mean time to failure, ensuring your projects never pause.

The VLM-650-28 LPT is a compact, economical red laser line generator designed for consumer and industrial applications. Featuring a 650nm wavelength, low power consumption (Class 2, <1mW), and a robust brass housing, it delivers reliable, sharp laser lines optimized for short distances. With integrated optics and an APC driver for stable output, it supports continuous 24/7 operation with a 10,000-hour lifespan, making it ideal for 3D scanning, alignment, and measurement tasks across multiple industries.

Specifications

ASIN	B00ARBPI5Y
Best Sellers Rank	172,684 in DIY & Tools ( See Top 100 in DIY & Tools ) 51 in Line Lasers
Brand	Quarton
Colour	Red
Country of Origin	Taiwan
Customer Reviews	4.0 4.0 out of 5 stars (201)
Included Components	laser module
Item Dimensions L x W	26L x 9W millimetres
Item Weight	0.05 Pounds
Level Measurement Type	laser
Level Measurement Units	meter, degree
Manufacturer	Quarton inc.
Material	Brass
Model Number	VLM-650-28 LPT
Operation Mode	Manual
Part Number	250-42807G
Style	VLM-650-28 LPT - Red Laser
UPC	705702428021

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