If you received actual 3W LEDs and were to run them at 3.5V, 700 mA without a heatsink, then yes, you will sooner-rather-than-later kill them.

You have three options.

  1. Run them at a lower voltage/current.
  2. Heat sink them, perhaps improvised out of some aluminum bar stock and metal epoxy (Home Depot)
  3. Buy star PCB heat sinks and assemble them yourself.

#Assembléia PCB

consulte Mais informação: LED PCB Assembly

OliverSmith

Oliver é um engenheiro eletrônico experiente, especializado em design de PCB, circuitos analógicos, sistemas embarcados, e prototipagem. Seu profundo conhecimento abrange a captura esquemática, codificação de firmware, simulação, disposição, teste, e solução de problemas. Oliver se destaca em levar projetos desde o conceito até a produção em massa usando seus talentos de design elétrico e aptidão mecânica.

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