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Bulk 3V 5mW mini red lasers
undiffused 1 cm or 5 meter distance target the has been the same milliwatts? 3v 5mw laser>-------1cm------> ? = mw 3v 5mw laser>---------------------------------------5cm----------------------------------> ? = mw Help. Thank you. -
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Bulk 3V 5mW mini red lasers
i have this. 100pcs 650nm 6mm 3V 5mW Laser Dot Diode Module Red Copper Head-in Diodes from Electronic Components & Supplies on Aliexpress.com | Alibaba Group But need help for measurement. distance at 1cm / (focused light 0.3 or 0.4mm on ruler) = ? mW distance at 2cm / (focused light 0.3 or...