Don't
own a volt meter - Trying to install anything electrical
without a digital volt meter is like trying to install an
irrigation system without a shovel or to eat soup with a
fork - it can be done but having the right tools makes it
a lot easier.
2.
Didn't offer the client a range of options - With
proper planning and cabling, lighting can truly be done
in phases. Also, don't determine what the client should
spend on lighting; present the options and let him decide
the value of light.
3.
A
lack of switching flexibility - A lighting layout must
reflect the different uses a well-designed landscape will
provide: i.e., entertaining, at home alone, or away from
home. There are some areas (BBQ) you should light only when
they're in use.
4.
Didn't use waterproof splice - We don't care what
brand you use; just make sure the connection is waterproof
(no black tape...please!). Poor system performance results
when splices corrode, creating electrical resistance.
5.
Not
enough sources of light - Trying to illuminate large
areas / objects with too few fixtures of large wattage results
in nasty glare and unbalanced effect. The neat thing about
12v fixtures is their micro size allowing them to be installed
anywhere.
6.
Voltage
drop - Layout logistics rule of thumb: 100' / 100 watts
per 12 gauge cable. To minimize voltage loss and add functionality
to the project, insist on having adequate 120v outlets for
transformers, catering and other outdoor functions.
7.
Using
over 80% of transformer capacity in initial design -
Clients always add lights; they rarely delete lights. Leave
room on the transformer size for that eventuality. Also,
our RS-20 can be upgraded to an RS-35 with a simple lamp
change.
8.
No
three-dimensional lighting effects - Use vertical elements
to downlight (moonlight), area light or trellis light. This
is the most efficient and elegant type of lighting; it's
also the most under-used. This effect gets fixtures out
of harm's way.
9.
The use of pathlights in turf - Regardless of brand,
fixtures prefer not to be mowed, fertilized or watered.
When possible, use downlights or wall lights instead of
pathlights or place them in planter areas only.
10.
Too
many well lights - To minimize maintenance, use well
lights only in turf areas; use regular spotlights or LiteGuard™s
in planter areas. The subterranean environment create the
most maintenance problems - avoid it if possible.