New answers tagged replacement
In general usually LEDs are sold with some sort of a current limiting mechanism (usually a resistor) so there should be no difference between plugging a regular, halogen or an LED load. With that being said, it is generally recommended not to go above 80% or so of maximum capacity. However, most consumer devices are designed with that (or usually much ...
While most 110-240V LEDs are nasty complex loads due to their AC/DC power supply, many 12V LEDs are probably no more complex than the LED and a resistor, or possibly the LED, another diode or 4, and a resistor for 12VAC service. That sort should run fine of a 12V supply at full ratings and with no need for a regular halogen bulb in circuit. If your 12V LEDs ...
The vent is almost the same size as the masonry opening in width, since the vent is plastic, I would use a table saw to reduce the top and bottom flanges to get it to fit between the top and bottom row of brick and trim the edges the small amount needed as well. After that, set the vent inside the brick opening enough to bear against the mortar that is ...
Since the vent is held in mechanically otherwise, I would center it in the opening and just use spray in foam to fill in around the vent.
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