Shenzhen First Tech Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union, |
| Supply Ability | 2000 pieces per month |
| Delivery Time | 30 days |
| Packaging Details | carton box |
| Charging Mode | MPPT |
| Operating Temperature | -10°C To 50°C |
| Inverter Type | hybrid solar inverter |
| Frequency | 50Hz/60Hz |
| Output Voltage | 48VDC |
| Size | 438*295*105mm |
| Brand Name | 1stess |
| Model Number | EM (PV60-500VDC) 620048L |
| Certification | CE, IEC |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union, | Supply Ability | 2000 pieces per month |
| Delivery Time | 30 days | Packaging Details | carton box |
| Charging Mode | MPPT | Operating Temperature | -10°C To 50°C |
| Inverter Type | hybrid solar inverter | Frequency | 50Hz/60Hz |
| Output Voltage | 48VDC | Size | 438*295*105mm |
| Brand Name | 1stess | Model Number | EM (PV60-500VDC) 620048L |
| Certification | CE, IEC | Place of Origin | China |
| High Light | 24V 48V hybrid solar inverter ，off grid solar inverter with MPPT ，pure sine wave solar inverter | ||
| Place of Origin | China | China | China |
|---|---|---|---|
| Mounting Method | Wall Bracket | Wall Bracket | Wall Bracket |
| Nominal Battery Voltage (V) | 24VDC | 48VDC | 48VDC |
| Lithium Battery activation | YES( By PV or Utility) | YES( By PV or Utility) | YES( By PV or Utility) |
| Nominal Voltage | 230VAC | 230VAC | 230VAC |
| Lithium Battery communication | YES(RS485) | YES(RS485) | YES(RS485) |
| Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Waveform | Pure Sine wave | Pure Sine wave | Pure Sine wave |
| Solar Charger Type | MPPT | MPPT | MPPT |
| Communication Interface | RS232+RS485 | RS232+RS485 | RS232+RS485 |
| PV Array MPPT Voltage Range | 60VDC~500VDC | 60VDC~500VDC | 60VDC~500VDC |
| Surge Power | 7000VA | 11000VA | 1240VA |
| Size | 358*295*100mm | 438*295*105mm | 438*295*105mm |
| Weight | 7kg | 9kg | 9kg |
| Operating Temperature Range | (-10'℃ to 50℃) | (-10'℃ to 50℃) | (-10'℃ to 50℃) |
GLOBAL MARKET RESEARCH FINDINGS FOR EM SERIES OFF-GRID HYBRID:
Background: Rapid industrialization and frequent power outages in rural areas drive demand for backup power and solar integration.
Findings:
Product Positioning: Valued as a backup system for households and small businesses.
Sales Potential: High in suburban and rural areas; interest in 3.5KW and 5.5KW models.
Service & Support: Strong preference for local warranty service centers and Vietnamese-speaking technical support.
Key Concerns: Battery compatibility (LiFePO4), storm-resistant durability, and WiFi monitoring ease.
Background: Archipelagic nation with high solar adoption; frequent typhoons cause grid damage.
Findings:
Product Positioning: Seen as a disaster-resilient power solution for homes and micro-enterprises.
Sales Potential: Strong in Visayas and Mindanao; 2.5KW and 3.5KW models most inquired.
Service & Support: Demand for mobile service units and over-the-phone troubleshooting.
Key Concerns: Surge protection, battery activation via PV during blackouts, and product longevity in humid climates.
Background: Growing middle class, rising electricity tariffs, and remote islands without grid access.
Findings:
Product Positioning: Mainly for residential solar systems and small off-grid businesses.
Sales Potential: High in Java and Bali; interest in 5.5KW for small workshops.
Service & Support: Local distributors requested to stock spare parts and offer installation training.
Key Concerns: High-temperature performance (over 40°C), compatibility with local battery brands, and dust protection.
Background: Strong solar policy support; agricultural and tourism sectors seek cost-saving energy solutions.
Findings:
Product Positioning: Used in farm irrigation, resorts, and residential backup.
Sales Potential: Steady demand in Chiang Mai and Phuket; 6.2KW model for resorts.
Service & Support: Expectation of quick response (<48 hours) and certified installers.
Key Concerns: Grid-tie functionality inquiry (though off-grid), output purity for sensitive equipment, and WiFi setup simplicity.
Company Details
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Shenzhen First Tech Co., Ltd was established in 2017, which is a one-stop solution provider of solar & battery energy storage system.First Tech is engaged in the research, development, production, sales and service of the commercial and industrial energy storage system, home energy storage sys... Shenzhen First Tech Co., Ltd was established in 2017, which is a one-stop solution provider of solar & battery energy storage system.First Tech is engaged in the research, development, production, sales and service of the commercial and industrial energy storage system, home energy storage sys...
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