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7000mW 445nm Blue Laser Module 7W Fixed Focus TTL&PWM Modulation w/ Heat Sink 2.54-3P+2P DIY Laser Engraver for EleksMaker
US$148.58 US$212.99

Q: what is the focal lenght of this laser?

Asked by caraotarocks on 2020-01-15 02:47:34

jiangrong8 Hello, the focal length of this laser is about 18mm, thanks.

2020-01-16 12:09:23 Helpful (0)
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Answers (1)
BG533755754 02/03/2019
they are light and vision is clear. I hope they are also long lasting. I've only had them for a week or so.
TR90 Ultralight Unbreakable Best Reading Glasses Pressure Reduce Magnifying
US$9.99 US$15.99
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BG533755754 06/03/2019
The kit was received in about 2-3 weeks from ordering. it came complete with a few extra parts like LEDs, resistors, etc. The smd parts were challenging to silder
Geekcreit® DIY Biaxial Spherical Rotating DIY LED Flash Kit Creative POV Soldering Training Kit
US$34.71 US$43.99
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BG533755754 02/03/2019
I like these magnifying glasses. they are well made and vision is Crystal clear through them. the highest magnification has a reduced working distance that may not be suitable for certain purposes.
1X 1.5X 2X 2.5X 3.5X Headband Headset Jeweler Magnifier Magnifying Glass Loupe Glasses with LED Light
US$16.19 US$21.99
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BG533755754 02/03/2019
definitely a nice board. it seems well made. I have it on a project and it's working just fine as I type this.
Geekcreit® MEGA 2560 R3 ATmega2560 MEGA2560 Development Board With USB Cable Geekcreit for Arduino - products that work with official Arduino boards
US$29.99 US$31.99
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