Condensation is a naturally occurring condition that can affect any light. It does not suggest a defect in a product, as opposed to what happens when a leak occurs, in which case there is water ingress that could lead to a system failure. The explanation contained herein is intended to help end users differentiate between these two conditions so they understand what, if anything, needs to be done.
Condensation is the change of water from a gaseous form (vapor) into liquid water. It appears as small droplets inside the light.
Condensation does not cause a problem with normal operation of the light and is, therefore, NOT considered to warrantable condition.
In fact, J.W. Speaker lamps are designed to allow moisture to escape and not re-enter, but it takes time for them to evaporate (the amount of time will depend upon whether or not the light is turned on or not).
Virtually all lights are prone to condensate due to the following events:
- Air is trapped inside a lamp when manufactured
- Plastic parts used in lights naturally absorb moisture in the air
- As the light heats up these plastic parts release moisture that mixes with the air
- Moisture attaches itself to the coolest part of the lamp, e.g. the lens
- Halogen lamps tend to run hot so the moisture evaporates quickly
- LED lights produce less heat so moisture takes longer to evaporate, so it
can be more noticeable.