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RE: LIGHTING SYSTEM: LEDs Must Read Danger by @samest

in #steemstem • 7 years ago

I'm very interested in 5g and LEDs and smart citiesibm-ericsson-module.jpg

I have a skeptical view of it all. You seem to have positive attitude about the LEDs so I have to give an upvote for this issue. Thanks . I'll check into this further.

7 years ago in #steemstem by
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