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Under a 532nm wavelength, the Laser Pointer 303 Green Laser Light projects a visible green beam for optical physics experiments. This unit uses an 18650 Li-ion battery to maintain a 500m to 8000m range. It supersedes the 301 model by integrating an adjustable focus ring and a removable star cap for pattern projection.
Key Features
- Adjustable Focus: Rotate the head to change the beam diameter. Ignites matches or points at distant objects.
- Safety Key Lock: Rear-mounted mechanical switch requires a physical key. Prevents accidental activation by children or students.
- Removable Star Cap: Threaded diffraction lens produces multiple light points. Projects kaleidoscopic patterns for astronomy or displays.
- Aluminum Alloy Body: Metal casing weighing 112g resists impact damage. Survives drops on hard lab floors.
Frequently Asked Questions
What is the range of Laser 303?
The beam reaches between 500 and 8000 meters depending on atmospheric clarity. High humidity or road dust reduces visibility at maximum distances.
How to use Laser 303 for experiments?
Insert the 18650 battery and unlock the rear safety switch. Adjust the focal ring to align the beam for refraction or reflection tests.
