These modules have an APC (automatic power control) circuit which uses a photodiode to regulate the output, 3-5mW, 8-10mW and 10-15mW.
5mW Green (520nm) Mini Dot Laser Module (6mm) Class 3RProduct no.: OFL109-5-520Compact 3-5V laser module, 5mW Class 3R Laser. APC, 6mm diameter. Industrial Quality.
Delivery weight: 0.05 kg
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3-5mW Green Laser Module (APC)Product no.: OFL146A 3V module with APC (automatic power control) circuit.
Delivery weight: 0.05 kg
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8-10mW Green Laser Module (APC)Product no.: OFL165A 3V module with APC (automatic power control) circuit.
Delivery weight: 0.05 kg
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