VMAX POWER is the export brand of Beijing Multifit Electrical Technology Co., Ltd., a listed high-tech enterprise (equity code 280768) that designs, manufactures and commissions small- and mid-scale photovoltaic solutions. Distributors, installers and EPC contractors in 80+ countries source our inverters, cleaning equipment and turnkey PV kits directly from the factory — backed by engineers who support you from system design to after-sales service.
Every product line is developed in-house and validated as part of a complete system, so components work together out of the box — fewer compatibility issues, faster commissioning and cleaner warranty handling for your customers.
Flagship · Turnkey PV One-stop solar packages engineered at component level: modules, inverter, battery, charge controller and accessories are selected to match, so your installers receive a single, compatible bill of materials instead of juggling five suppliers. Private-label customization and factory-direct delivery are standard.
Cleaning Tech Dust, sand and bird droppings steadily erode module output — especially in arid, agricultural and coastal regions. Our robots restore generation on rooftop and ground-mounted arrays while eliminating manual labor and working-at-height risk.
Best Seller Double-headed design for faster, more even cleaning — a favorite with O&M teams and small-to-mid arrays.
Patented Design Toroidal transformer, 32-bit integrated CPU and 64K program space for high efficiency and strong surge handling.
Multifit was founded in 2009 with one mission: deliver world-class small-scale photovoltaic power plants for homes, farms and businesses, and keep innovating renewable-energy electrical products. Today our sales and R&D teams combine field experience from installations worldwide with in-house development of inverters, cleaning equipment and system controls.
Strict incoming, in-process and pre-shipment quality control, a documented ISO 9001 / ISO 14001 management system and a reliable after-sales team give importers the predictability they need to build a brand on our products.
Direct access to the engineers who design your products shortens problem-solving from weeks to days — and protects your margin and your brand reputation.
A publicly listed company with transparent governance and audited quality systems — lower counterparty risk for importers and tender bids.
Our professional engineering team develops the latest inverter and cleaning technologies in-house, so firmware, hardware and system integration questions are answered at the source.
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Build your own brand with private labeling, custom packaging and configuration adjustments, supplied straight from our production line with fast, engineer-level replies.
Off-grid systems secure daily electricity where the grid is absent or unreliable; on-grid systems cut energy bills for homes and businesses connected to the utility.
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"Sunshine for you, Multifit to all" — from sizing and design to installation guidance and after-sales support, we stay with your project for its full lifecycle.
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Designed for owner-built sites on pitched roofs, flat platforms and carports. Self-consumption during daylight hours reduces utility bills, while a battery-ready inverter allows storage to be added later without redesign.
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Built for locations far from the power grid — remote villages, Gobi desert areas, beaches and islands. Solar generation plus battery storage delivers round-the-clock power and cuts generator fuel and maintenance costs.
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Suited to large color-steel workshop roofs, open squares and desert ground sites. Pairing the array with automated cleaning keeps soiling losses under control on sites where manual washing is costly or unsafe.
View DetailsPractical selection notes from our application engineers, based on what overseas distributors and installers ask us most before placing an order.
| System Type | Grid Connection | Battery | Best For | Core Components |
|---|---|---|---|---|
| On-Grid | Required; exports surplus to the utility where net metering applies | Not required | Homes and businesses with stable grids seeking the fastest payback | Solar Panel, On Grid Solar System |
| Off-Grid | None; fully independent | Required for night-time and cloudy-day supply | Remote villages, farms, islands, telecom and areas with no grid | Off Grid Solar System, Solar Controller |
| Hybrid / Storage | Optional; uses grid or generator as backup | Required; stores solar for peak hours and outages | Regions with frequent blackouts or high peak-time tariffs | Energy Storage Inverter, Solar Battery |
Low-frequency models use a heavy toroidal transformer that absorbs high start-up currents, making them the safer choice for pumps, compressors, motors and generator-backed sites.
High-frequency models are lighter, more compact and cost-efficient — ideal for residential and electronic loads where surge demand is moderate.
Soiling losses depend on dust levels, rainfall, tilt angle and nearby agriculture or traffic. In dry, dusty climates uncleaned arrays can lose a double-digit share of their output.
Cleaning robots suit large, water-scarce arrays; double-headed brushes are the cost-effective option for rooftops and small sites.
A reliable first estimate: daily kWh × days of autonomy ÷ usable depth of discharge.
Example: 10 kWh/day × 2 days ÷ 0.9 (LiFePO4) ≈ 22 kWh of capacity. The same load on lead-acid at 50% DoD needs about 40 kWh. Our engineers verify final sizing against your load profile.
Can't find your answer? Our export team responds with engineer-reviewed information, not generic sales replies.
Contact usShare your load profile, site location and target market — we'll recommend a matched configuration and send the relevant datasheets and certificates.
