# HENGLAN (恒澜) > HENGLAN (恒澜) supplies and configures UPS systems, servo and contact voltage stabilizers, VRLA and LiFePO4 batteries, and pure sine wave inverters for project buyers, electrical contractors, distributors, and system integrators in Africa, South Asia, Southeast Asia, and the Middle East. The range covers 400 VA–800 kVA UPS, 10–2000 kVA stabilizers, VRLA/2 V/LiFePO4 batteries, 1–7 kVA inverters, EPS, fire emergency lighting, precision cooling, micro-module data centers, transformers, reactors, and frequency converters. ## Core pages - [UPS for home](https://www.upsavrfactory.com/ups-for-home/): what a home UPS carries, router runtime, loads to keep off it, and price drivers. - [UPS vs AVR](https://www.upsavrfactory.com/ups-vs-avr/): stored energy versus voltage correction, built-in AVR limits, and how to combine both. - [UPS manufacturer](https://www.upsavrfactory.com/ups-manufacturer/): OEM/ODM sourcing, documents to request, and the inputs a factory needs to quote. - [FAQ index](https://www.upsavrfactory.com/faq/): 210 answers, each linked to the page it comes from. - [UPS for Nigeria](https://www.upsavrfactory.com/ups-systems/nigeria/): 230 V 50 Hz sizing, 160–260 V swings, load shedding runtime, Lagos and Abuja delivery. - [UPS systems](https://www.upsavrfactory.com/uninterruptible-power-supply/): UPS topologies, capacity, runtime, and quotation guidance. - [Solutions](https://www.upsavrfactory.com/solutions/): Seven core application pages plus hospital, bank, school, factory and five special-application scenarios. - [Reference projects](https://www.upsavrfactory.com/projects/): Seven typical industry configurations plus five partner reference projects in China, with sector, load category, installed solution and the four figures that make a reference verifiable. - [UPS sizing calculator](https://www.upsavrfactory.com/sizing-calculator/): Convert kW to kVA, choose a standard size, and estimate 12 V battery blocks. - [Voltage stabilizers](https://www.upsavrfactory.com/voltage-stabilizer/): Servo and contact AVR selection, input ranges, and maintenance. - [Automatic voltage regulator](https://www.upsavrfactory.com/automatic-voltage-regulator/): AVR meaning, generator AVR vs mains AVR, and selection. - [UPS battery](https://www.upsavrfactory.com/batteries/ups-battery/): VRLA vs LiFePO4, runtime formula, strings, and temperature effects. - [Battery backup runtime](https://www.upsavrfactory.com/batteries/battery-backup/): 2, 4, and 8 hour battery bank planning. - [Product catalogue](https://www.upsavrfactory.com/products/): Thirty product families with model tables and specifications. - [Full model index](https://www.upsavrfactory.com/products/models/): Every family and model table on one page. - [Supplier & quotation](https://www.upsavrfactory.com/supplier-and-quotation/): Quotation checklist, OEM/ODM, Incoterms, and contact. - [Certifications](https://www.upsavrfactory.com/certifications/): CE, ISO 9001, IEC 62040, RoHS, and UN38.3 documentation by model. - [Insights](https://www.upsavrfactory.com/blog/): Technical guides on UPS sizing, topology, battery runtime, and grid quality. ## Product families - [Single-phase online UPS 1–10 kVA](https://www.upsavrfactory.com/products/online-ups-single-phase/): 0 ms transfer, 0.9 output PF, 85–300 VAC input. - [Three-phase online UPS 10–200 kVA](https://www.upsavrfactory.com/products/online-ups-three-phase/): 3:1 crest factor, 384 VDC battery frames, parallel options. - [Rack-mount UPS 1–10 kVA](https://www.upsavrfactory.com/products/rack-mount-ups/): 1U–3U, external battery packs, SNMP. - [Modular UPS 90–300 kW](https://www.upsavrfactory.com/products/modular-ups/): 30 kW hot-swap modules, N+1. - [Industrial UPS 10–200 kVA](https://www.upsavrfactory.com/products/industrial-ups/): wide input, high overload, IP21. - [Line-interactive UPS 500 VA–3 kVA](https://www.upsavrfactory.com/products/line-interactive-ups/): AVR buck-boost, 4–6 ms transfer. - [Servo voltage stabilizer 10–100 kVA](https://www.upsavrfactory.com/products/servo-voltage-stabilizer/): ±2%, 160–456 VAC input, RS485. - [Contact-type AVR 10–30 kVA](https://www.upsavrfactory.com/products/contact-voltage-stabilizer/): ±1%, 220 VAC ±20%. - [Three-phase stabilizer 10–100 kVA](https://www.upsavrfactory.com/products/three-phase-stabilizer/): independent phase regulation. - [VRLA battery 12 V 24–250 Ah](https://www.upsavrfactory.com/products/vrla-battery/): sealed lead-acid blocks for UPS and telecom. - [LiFePO4 battery 51.2 V 50–280 Ah](https://www.upsavrfactory.com/products/lithium-battery/): rack modules, BMS, 6,000 cycles. - [Pure sine wave inverter 2.2–7 kVA](https://www.upsavrfactory.com/products/inverter/): 12/24/48 VDC, MPPT, RS485. - [Offline UPS 400 VA–3 kVA](https://www.upsavrfactory.com/products/offline-ups/): standby backup for small loads. - [High-frequency online UPS 1–800 kVA](https://www.upsavrfactory.com/products/high-frequency-online-ups/): HH/HL/PHR/DL and Giant iND. - [NX modular UPS 10–600 kVA](https://www.upsavrfactory.com/products/nx-modular-ups/): X+N, hot-swap. - [Elevator UPS](https://www.upsavrfactory.com/products/elevator-ups/): AD-ARD lift rescue backup. - [Mini DC UPS](https://www.upsavrfactory.com/products/mini-dc-ups/): 17–120 W PoE/CPE backup. - [SBW servo stabilizer 10–2000 kVA](https://www.upsavrfactory.com/products/sbw-servo-stabilizer/): heavy-duty servo. - [ZBW static stabilizer 10–2000 kVA](https://www.upsavrfactory.com/products/zbw-static-stabilizer/): no moving parts. - [Industrial AVR](https://www.upsavrfactory.com/products/industrial-avr/): AD-DTS/KPBS/JJW/JSW. - [Specialty battery](https://www.upsavrfactory.com/products/specialty-battery/): 2 V, 12 V, 48 V. - [Hybrid inverter](https://www.upsavrfactory.com/products/hybrid-inverter/): solar + battery. - [EPS emergency power](https://www.upsavrfactory.com/products/eps-emergency-power/): fire and life-safety loads. - [Fire emergency lighting](https://www.upsavrfactory.com/products/fire-emergency-lighting/): C-1812 system. - [Precision air conditioner](https://www.upsavrfactory.com/products/precision-air-conditioner/): 3.5–110 kW. - [Micro-module data center](https://www.upsavrfactory.com/products/micro-module-data-center/): prefabricated room. - [Transformers & reactors](https://www.upsavrfactory.com/products/transformers-and-reactors/): BK/SG/OSG/YG. - [Frequency converters](https://www.upsavrfactory.com/products/frequency-converters/): 50/60/400 Hz. - [Lithium UPS 3–6 kVA](https://www.upsavrfactory.com/products/lithium-ups/): ULi 48 V rack, 0 ms. - [Remote power supply](https://www.upsavrfactory.com/products/remote-power-supply/): YG/YGD 0.5–500 kVA long-distance transmission. ## Market guides - [South Africa](https://www.upsavrfactory.com/ups-systems/south-africa/): Load shedding, 230 V / 50 Hz, NRCS documentation. - [Philippines](https://www.upsavrfactory.com/ups-systems/philippines/): Brownouts, 220 V / 60 Hz, AVR plus UPS. - [Bangladesh](https://www.upsavrfactory.com/ups-systems/bangladesh/): Load shedding, 220 V / 50 Hz, price drivers. - [Nigeria](https://www.upsavrfactory.com/voltage-stabilizer/nigeria/): Voltage stabilizer sizing for a weak grid. ## Contact - Email: sale@upsavrfactory.com - Phone: +86 13922702228 - WhatsApp: https://api.whatsapp.com/send/?phone=8613922702227 - Address: HENGLAN Office, Room 307F, Huilange BLDG, No. 273, Huangpu Blvd W, Tianhe District, Guangzhou 510620, Guangdong, China - Website: https://www.upsavrfactory.com - Chinese site: https://www.upsavrfactory.com/zh/ - Arabic site: https://www.upsavrfactory.com/ar/ - Spanish site: https://www.upsavrfactory.com/es/ - French site: https://www.upsavrfactory.com/fr/ - Portuguese site: https://www.upsavrfactory.com/pt/ - German site: https://www.upsavrfactory.com/de/ - Vietnamese site: https://www.upsavrfactory.com/vi/ - Indonesian site: https://www.upsavrfactory.com/id/ - Russian site: https://www.upsavrfactory.com/ru/ - Inquiry: https://www.upsavrfactory.com/contact-us/ ## Notes - Prices, MOQ, lead time, and certification availability are confirmed per configuration and destination. This site does not publish a price list. - The sizing calculator returns a first-pass estimate, not a binding specification. - Product images and factory images are used with the project owner’s authorisation. Certification documents are model-specific.