![]() ![]() If a driver is connected live when attached to its respective fixture, it can cause an EOS failure. In some cases the back of the lamp may show a burn hole, especially with lightning.ĮOS can also have an adverse effect on a fixture that requires a remote low voltage driver.Ěnother sign could be a pungent burnt smell emitted from the lamp.One or more diodes out in this case, the bonding wires inside the LED device have been broken.In landscape lighting EOS can occur with a hot plug-in, a lighting strike, or a poorly made connection. A hot plug-in can cause an “electrical over stress” (EOS) on many parts of the internal circuitry of an LED lamp or integrated fixture.ĮOS can simply be described as an electrical component that is operated beyond its maximum rated electrical limit accidently or deliberately according to its rating on the specification sheet. The reason for this is that it is virtually impossible to be 100% sure that there will not be the slightest electrical arc when a lamp is inserted into a socket or a connection is made with live cable. ![]() This practice has been widely used especially if a contractor was out providing maintenance on a lighting system.Īs we have evolved into the era of LED light sources, the practice of hot plugging should be avoided. ![]() "Back in the halogen and incandescent days of landscape lighting, it was a common practice by many contractors to install lamps while the system was on. To help keep those LED lights working, I am copying the paragraphs below from an email received by Kevin Smith of BrillianceLED. We hear about LED lighting that fails and in addition to surges taking care when doing maintenance is important to prevent the early loss of life of LED bulbs. ![]()
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