View Single Post
  #6  
Old 03-16-2013, 10:57 AM
steveparrott steveparrott is offline
Sponsor
 
Join Date: Jun 2005
Location: Tampa, FL
Posts: 950
This is why we don't seal our directional lights - they can breath through the knuckle and stem, or shroud assembly. This allows the expanding hot humid air to escape when the fixture is lit, so when the fixture cools, there is less moisture inside the fixture - hence, less condensation to corrode internal parts.

A fixture that is completely sealed (moisture trapped in the fixture) goes through a continuous evaporation/condensation cycle that results is far more corrosion. In fact, standard laboratory tests for corrosion put test samples through this exact same scenario - repeated cycles of heating and cooling (in humid air)to accellerate the effects of condensation corrosion.

Our early experiments with completely sealed fixtures, and observations of corrosion in sealed fixtures confirmed this for us.
__________________
Steve Parrott
Communications Director
VOLT® Lighting

813.978.3700
stevep@voltlighting.com



Outdoor Lighting and LED Light Bulbs from VOLT®.
Reply With Quote
 
Page generated in 0.03488 seconds with 7 queries