Grape Solar has a good reputation for customer service. It's always nice to get a confirmation on your suspected energy requirements and if you're hooking things up correctly or should I say for best possible output of your solar equipment.
When you've been using a panel for awhile you know it's characteristics, how does it handle cloudy days, snow, indirect sun, etc. So when it comes time to stack on you know how to work with the panel. That's the good thing about Amazon prime, when you know what you want it can be at your front door in as little as 2 days. Sometimes your front door is an RV park or camping ground and you want to move on to the next location, not wait around for a panel to arrive.
Grape solar install instructions seems to be written by someone that actually put the system together and uses it and they picked out quality components for the job. There's also customers commenting on how well the panels were package for shipment. When you live in out of the way places that's a plus because packages can take a real beating sometimes before they make it to their destination.
Not to mention you're dealing with sensitive panels that you want to arrive in pristine condition so you can get them mounted and producing as quickly as possible.
These also have good reviews for working well on cloudy days.
Here's one on Amazon.
100-Watt poly crystalline panel with anodized aluminum frames and tempered glass for outdoor use and superior performance
Best in class xantrex C35 charge controller, backed by 50 years of Solar experience.
Battery not included, a minimum of one 12/24-volt deep cycle Battery is necessary to use this kit
Kit comes with mounting hardware, cables, and connectors for quick and easy set-up
Each Solar panel dimensions are 41" x 27" x 1.4" (l x w x D)
Good video about the Grape Solar - 400 watt system - Good reputation for customer service.
ideal for use in multiple applications such as boats and RVs the grape solar gs400 kid operates a wide variety of AC and DC powered devices including pumps LED lights computers and other small electronics the kid is also suitable for small cabins and emergency backup systems this kid has been designed to include everything you need to charge a 12-volt battery bank so you can get up and running as quickly as possible let's take a look at the components that make up the kit this kit is exceptionally easy to assemble and use first the heart of the system is the grape solar 100 watt crystalline panel the panel is designed with industry standard mc4 connectors used for their durability and weather resistance the back of the panel has mounting holes which allow you to mount the panel in various ways using the included mt4 cables you connect the grape solar panel to the zantrex c35 charge controller the cables include an MC for connector on one end and a bare wire on the other end which connects to the charge controllers terminal block the zantrex c35 charge controller is a pwm style charge controller that is large enough for you to expand your system for up to a total of five solar panels with a multicolor LED status light three-stage control temperature compensation and manual or automatic Equalization this durable charge controller will maximize your system performance and increase battery life the xantrex pro wat SW 2000 features pure sine wave output which is perfect for sensitive and heavy duty loads including refrigerators freezers small microwave ovens and lighting extension cables from the panel to the zantrex c35 charge controller and 12 volt batteries can be purchased separately if you don't already have them for detailed information on battery sizing and type or cables and other installation inquiries please contact our technical support or visit WWF solar calm