Lutron dimmers use tinned copper wires on some of our products. These
wires are silver in color as a result of the tinning process. Tinned
copper wires are compatible with copper wiring and wire nuts. Lutron
dimmer uses tinned copper wires to avoid stray strands and to make our
products easier to install.
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During normal operation, solid-state dimmers generate heat. A solid-state dimmer is roughly 98% efficient-2% of the power is dissipated as heat, causing the dimmer to feel warm to the touch. The closer a dimmer is run to full output and the higher the load (watts) on the dimmer, the warmer it will feel. This is perfectly normal and safe. Lutron dimmers are designed to the strictest UL safety standard, and can handle their full rated load (a 600 Watt dimmer can handle a full 600W of power*) wi...
All dimmers rely on heat conduction and convection to keep the electronic components cool. Derating is the reduction of the maximum capacity (load) a unit can reliably handle when fins/side sections are removed.