Single Phase String Inverter This series on-grid inverter power ranges from 1.5-10.5kW, which is suitable for the residential rooftop applications. It comes with one or two MPPT, applicable to single alignment and multiple alignments rooftop. What’s more, the new product- SUN-10.5K-G is one of the maximum power models of single-phase on-grid inverter on the market.  Three Phase String Inverter Deye three-phase on-grid inverter power range is from 4kW to 110kW with 230/400Vac. So, it can connect to utility grid(230/400V) directly without transformer. All the inverters are equipped with LCD display and buttons, easy operation and maintenance specially for remote and poor areas.   For the SUN-110K-G03, it has 6 MPP trackers and 24 pairs of strings. The Max. DC input power is up to 150kW. So, it can save equipment investment via connecting more PV modules.  Three Phase String Inverter(LV) This series 3 phase grid-tie inverter output voltage is 127/220V, which is designed for 127/220V grid of South American areas. The product portfolio covers from 6kW to 50kW which is able to satisfy majority needs of residential and commercial PV plants.  Hybrid Inverter An on-grid inverter’s main job is to convert DC power generated from the PV array into usable AC power. Hybrid inverters go a step further and work with batteries to store excess power as well. In the developing world, hybrid inverters are more of a necessity to compensate for weak or intermittent grids or a lack of grid electricity all together. Deye hybrid inverters include single phase 3-16kW and three-phase 8-12kW, For the SUN-3K-SG04LP1-24-EU, it uses 24V battery bank and the rest of them adopts 48V battery. Also, the SUN-16K-SG01LP1-EU is the max single phase hybrid inverter on the global market. The Grid-interactive inverter consists of several hardware elements. The Grid-interactive inverter controls and monitors the connection of the electricity from the power plants. In addition, it also controls the disconnection of excess power from the plants. It ensures the dispatch of power at the peak time based on demand.

We are pround to publish Whaleflo 12Liters Submersible Solar Water Pumps,12V 24V for optional ,Power 120W,Max Head 100M(max submersible 30M+70M lift).

This article hopes to let everyone know how to successfully build a photovoltaic off-grid power station through simple and plain language. 1. The value of off-grid systems From a long-term summary, the off-grid system is mainly based on the following starting points: (1) Places where there is no way to use mains electricity (grid), such as mountains, boats, cars, and the wild. This is the most typical off-grid system requirement; more than 80% of users want to achieve power supply through off-grid systems because it is inconvenient to use mains electricity. (2) Areas where there is mains electricity, but irregular power outages often occur. When there is a power outage, the photovoltaic off-grid system can continue to supply the load to meet the continuous power demand. (3) There is mains electricity, but it is hoped that the electricity bill can be reduced through the off-grid system. The off-grid system can not only charge the battery through photovoltaic modules, but also charge the battery by setting the utility power when the rate is low, and then supply the load by discharging the battery when the rate is high. 2. Typical off-grid system composition Off-grid system diagram   The above figure is the composition diagram of a typical off-grid system. A few things to note: (1) Off-grid system means that the system output does not need to be connected to the mains grid like a grid-connected photovoltaic system. The output of an off-grid system is what supplies the load. (2) The off-grid system provides the V-F source, which is equivalent to the role of a power grid. (3) The main equipment in the off-grid system are: photovoltaic modules, off-grid inverters, battery packs, confluence devices, distribution boxes, and electrical loads. (4) The most streamlined off-grid system can only contain two parts: off-grid inverter and battery pack. /3, Off-grid system design process (1) It is a "tailor-made" process to confirm the demand for an off-grid system, because in most cases the loads that different users need to bring are the same, and the duration of electricity consumption is different. The correct way is to first confirm the requirements: what loads will be brought? How big is the load? How long do you use it in a day? Then figure out how big a system needs to be built. For example, a customer in North China needs to build an off-grid power station, the main load is a 3500W blower, the power consumption is 3 hours a day, and the backup power needs only 1 day. From this information, the power of the load is 3.5KW, and the power consumption per day is 10.5kWh. (2) Off-grid machine selection The early off-grid system control part is performed by MPPT controller + DC/AC converter. With the development of technology, mainstream manufacturers currently advocate the use of control and inverter integrated machines, and one device can be used at the same time. Implement functions such as Growatt's SPF ES series of off-grid inverters. After confirming...

If you want a quiet running self-priming travel trailer and RV water pump, check out the Whaleflo 33 Series Diaphragm Pumps. It has large rubber mounts on the base that help reduce vibration when the pump is running, thereby reducing its overall sound output. The pump is self-priming, so it can handle RV pipes that need to rise up to six feet. It is also designed to run dry without damaging the motor or components. The pump can deliver three gallons per minute, which is more than enough for most moderate RV applications. However, I do like that the pressure level of this pump is highly adjustable. It can be set between 17 and 60 PSI depending on your personal preference. It's also capable of handling liquid temperatures up to 140 degrees Fahrenheit, enough to work with most standard RV water heaters. To match the existing water pump in your RV, check out the dimensions of the WHALEFLO Diaphragm Pump: 8.5"L x 5.12"H x 5.63"W. The unit weighs a total of 4.63 pounds and comes complete with two half-inch barbed hose adapters, a 50 mesh inlet filter, and a complete set of installation and operating instructions. things we like Rubber Bracket: Helps reduce vibration during pump operation. Self-priming: The pump is self-priming up to 6 vertical feet. Dry running protection: prevents the pump from damaging the motor when running without water. Adjustable Pressure Switch: Can be set from 17 to 60 PSI. things we don't like Low Flow: The pump delivers up to 3 gallons per minute, which is on the low end compared to other similarly priced models.

Whaleflo vacuum-liquid pump is on the market. The vacuum-liquid pump can pump air, water, oil, methanol, honey, fructose, laundry detergent, and other viscous liquids. Parameters, working voltage: 12V, 24V, power: 30 watts, flow: 1.2 liters, maximum working pressure: 1Mpa, maximum suction: 0.09Mpa, extraction liquid temperature -10 degrees -100 degrees, the outer diameter of the water inlet and outlet is 9.5 mm (quick plug interface) The extraction liquid flow accuracy is about %1, allowing long-term idling and long-term work.

Dear value customer: We would like to take this opportunity to thank you for your kind support all this while. Please kindly be advised that our factory will be closed from 19th Jan 2022 to 10th Feb 2022.to celebrate the Chinese traditional festival, Spring Festival. Any orders will be accepted but will not be processed until 11th Feb 2022.If you have any order urgently,We suggest you place orders in advance, and we could arrange the pre-production process accordingly. Kindly contact our sales rep for any issues in this period  Sorry for any inconvenience caused. Thanks & Best regards， Xiamen Whaleflo Industry and Trade Co.,Ltd