amolvaishnav
Newbie level 3
without transformer i have to drive 50 nos 5050 smd led's
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Are you refering to 5050SMD led's on Flexible PCB strip or you have individual ones. First you may write how you have connected or supposed to connect it as you have mentioned 20 Nos in the heading and 50 Nos in your post. In fact the flexible LED strips can be directly powered by a regulated 12 volts DC supply may be a SMPS.without transformer i have to drive 50 nos 5050 smd led's