VOLT™ 12 Volt Pro Multi-Tap TransformerVoltPro Professional Series Landscape Light Transformers feature toroidal cores for professional results and commercial reliability. There are 2 types of cores: stacked/laminated or toroidal. Toroidal cores last longer, are more efficient and quieter than the more common laminated core transformers. Toroidal cores cost more and are generally only available on higher end commercial transformers.This is a Magnetic Transformer not an Electronic Transformer. Magnetic transformers are the only solution you should consider for outdoor lighting systems. Electronic transformers are small and inexpensive but typically only last 4-6 years and can be noisy (think of the smaller, but less reliable transformers that are in ballasts and florescent lights-- those are electronic transformers). Magnetic transformers on the other hand last 20+ years. We use heavy weight, reliable magnetic cores.
Magnetic Transformers vs Electronic Transformers
use two coils, a primary coil and a secondary coil, to reduce the
voltage from 120 volt down to 12 volts. The primary coil carries the
line voltage (110 v or 120 v). The flow of electricity through the
primary coil induces a magnetic field that creates a current in the
secondary coil. Since the secondary coil has fewer windings, it has a
low voltage. The size of the secondary coil or windings determines the
voltage output of the transformer.
transformers there are two types of coils or windings:
laminated/stacked cores or toroidal cores. Laminated or stacked
windings have sheets wrapped in copper wire that are then stacked or
laminated together to make a core. This is the more common, less
expensive method for manufacturing a core. Toroidal cores are one solid
unit shaped like a donut and have the windings wrapped around the
donut, in and out of the donut hole. Toroidal cores are more efficient,
don't buzz and rattle, run cooler but are more expensive to make.
either case, toroidal or laminated cores, magnetic transformers use a
lot of copper windings, are very heavy and expensive. However they are
the much more reliable, quieter and the only real solution for an
outdoor lighting solution.
Electronic Transformers use an
inverter to change the frequency of the electricity form 50 Hz to about
20,000 Hz. By not using bulky and heavy copper windings, electronic
transformers can be very small, light and inexpensive. As such they can
even be incorporated into the lighting fixtures themselves. All
transformers that are small, light or built into a fixture are
electronic. The downside is they have short life spans and can be
noisy. For example you are probably familiar with the florescent light
that takes a long time to come on or that florescent fixture that has
failed-- that is usually the result of the electronic transformer in the
ballast failing-- a very common occurrence. Additionally they cannot
take as high loads and their performance is effected by heat. They
hotter the operate or their operating environment, the shorter their
life span. Electronic transformers will not perform well in hot
In short magnetic and electronic transformers use
two different technologies to lower the voltage-- one is inexpensive but
unreliable, the other is heavy duty but bulkier and more expensive.
UL Listed, 10 year warranty.
Don't forget to order a timer or photocell for automatic operation
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