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20% OFF Duvar Lambaları Masa Feneri için 5W DC 9-12V COB Çip LED Işık Kaynağı Levha 50x7mm US$7.99 US$9.99 View It

Genel:

danielpedro 06/11/2017

Attenzione: Il COB non può essere collegato direttamente ad una batteria o ad un alimentatore da 12V perché non ha una resistenza interna per la limitazione della corrente. Per una corretto funzionamento può essere collegato a un alimentatore da 12V con in serie una resistenza da 8-10 ohm 2W oppure ad un alimentatore a corrente costante (ad es 350 mA). Con 350 mA la tensione ai capi del COB è di circa 9V e la potenza è di circa 3W.

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