Category: (Automotive Parts and Accessories)
4 new, starting at $435.31
SHARP polycrystalline 80W solar kit that can produce 4.67 amps. Kit comes complete with a male D/C plug, mounting bracket and screws, battery clamps, voltage tester, quick connectors, and extra wiring. Ideal for boats, RV, 12v battery charging, pumps, satellite dishes, and many other uses. Easy to install, weatherproof, and allows for connecting multiple panels for more power. Unit has a 25-year warranty.
The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar
Panel Module will give you several more reasons to love the sun. It
provides the power you need, while helping you save money and
protect the environment. This panel is ideal for cabins,
recreational vehicles, remote power, back-up power, and 12-Volt
battery charging. This panel comes with compatible wiring,
accessories and a voltage tester to help you start producing up to
80 Watts of clean, free power in all weather conditions.
![]() Sunforce panels can be easily added to new or existing systems. |
![]() Sunforce Solar Panels are effective in areas of both high and lower sun exposure, making them ideal for use in the United States. View Larger |
Great Panel - packed poorlyReviewed by R. Rothen, 2010-02-27
The panel is great - built very solid, as well.
One thing I did not care for: it was packed poorly. An extra layer
of heavy cardboard on the outside of the box would be good. The
mounting- kit, cable and free tester were just floating in the box.
I bought two panels (2 separate orders) - both times it was shipped
in the same manner.
The panels would deserve 5 stars... but because of poor packing...
only 3 stars.
Sunforce does the JobReviewed by John E. Miles, 2010-02-07
I've purchased the Sunforce 39810 80-watt solar panel, and completed the easy installation. I also purchased the 30 Amp controller. Both units are working as advertised. The panel provides approx 4.7 amperes on a sunny day to recharge my battery.
An excellent bargain for either battery usage or grid tie - great
size tooReviewed by HMMWV, 2010-02-05
In evaluating solar panels (and systems of many panels) the typical
pricepoint is $5.10/watt in high volume production. If you are
finding better pricing than that something is wrong.
An example may be inefficient panels that use larger panels,
causing massive panel size such that it is 4-8 times larger than
this panel with the same output.
Other inefficiencies to watch out for are caused by voltages that
are not useful. You could, for example, have a panel that output
500V at 1/10 A for 50W sold for $250 - looks good financially but
very few charge controllers go much over 250 volts (and many dont
make 250 volts - some are 12 or 48 volt systems). So that panel is
not much use
This panel is in the sweet spot - enough power to be useful (80W/3
is a simple approximation for what useful power you can get with a
battery all day long - about 25W or so given inefficiences. So
theoretically it could support a 25W load 24x7 with an 8 hour day
of sun.
The last inefficiencies to watch out for are panels that need heavy
sun before they produce any output. Some panels produce usable (1-2
amps) output with just ambient scattered light such as a foggy day,
while others give near zero output unless the sunlight strikes them
head on. This panel design gives output whenever there is light,
which is good. More light is always better, but it could be
worse.
So to sum it up - there are no pitfalls here. It passes all the
checks for pricing and performance. We load tested a string of 12
of these for a customer to profile their output to help decide if a
rotator would help and it showed that very little gain would come
from the expense of an automatic rotation system due to the panel's
efficiency at many angles. With 12 panels we produced 1KW for 8
hours with taper up and down on both sides.
Best of all this can be used in series strings for grid tie systems
or with battery maintainers
Off grid powerReviewed by Wayne Shappy, 2009-10-05
This product works great it provides me with enough power to keep in touch with the outside world.
Rising force in the marketReviewed by V S, 2009-09-06
80 Watts/4.67 Amps = 17 volts.
Be sure to size your system appropriately to minimize voltage drop
to your inverter.
Sunforce isnt the cheapest, but still a good price and a nice,
solid product with a 25-year warranty.
Note: GET A SOLAR SURVEY - you might not qualify for any tax
rebates if you dont get one!
Also do the math yourself. If you live on the 43rd paralell and get
4.4 sun hours per day average, do NOT place these at 43 degrees!
Tilt them closer to the SUMMER sun angle. You'll get more sun in
summer and less in winter, but you arent getting much in winter
anyways! You'll get more yearly output (or get a tracker and not do
any math)
The technology is getting better; cheaper manufacturing processes
and better spectrum band as well as improvements leading to higher
efficiencies. If you want better stuff, I dont know how "long" you
should wait. It can only get so good, the potput isnt going to
duble or anything. Laws of physics