Series of sixty white LEDs...

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Thread Starter


Joined Nov 29, 2005
Strings of sixty white LEDs in series will take about 180 Volts. What has to be considered on connecting them directly to 120VAC/180V peak ? No resistor, no capacitor, no rectification.
Two strings in counterparallel, conservatively driven for Vf =3, thus under its rated recommended current aiming for longevity.
Thermal, spikes, failures, safety...


Joined Aug 21, 2008
I am sorry, though this is an interesting topic, we are not allowed to discuss LEDs connected directly to the power mains.
From the User Agreement,

Restricted topics. The following topics are regularly raised however are considered "off-topic" at all times and will result in Your thread being closed without question:

  • Any kind of over-unity devices and systems
  • Devices designed to electrocute or shock another person
  • LEDs to mains
  • Phone jammers
  • Rail guns and high-energy projectile devices
  • Transformer-less power supplies
A forum that supports discussion of LEDs connected to the mains is Electro-Tech Online
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