About Hongkong Hjs Electronic Co., Ltd. - Electric Power Supply Components Supplier in China

Based in China, Hongkong Hjs Electronic Co., Ltd. lists five distinct power supply items in its catalogue. The supplier focuses on electric power supply components and switched‑mode power supplies (SMPS). Its product list includes a rainproof 12 V DC adapter rated at 2 A, a CCTV power supply providing 12 V DC at 30 A with 18 channels, a universal 12 V DC supply rated at 250 W, an LED‑specific power supply, and a 36 W switching adapter delivering 12 V DC at 3.0 A. Each item is described by output voltage, current or power rating, which are standard identification parameters for DC power modules.

In the broader market, DC power adapters of 12 V are commonly built as SMPS with efficiency levels above 85 % and voltage regulation within ±5 %. Typical safety standards include IEC 60950‑1 for information technology equipment and IEC 62368‑1 for audio‑visual and communication devices. While the catalogue does not specify HS codes, products of this type usually fall under HS Chapter 85, heading 8504 for static converters. Buyers often look for CE, UL, or RoHS compliance documentation to confirm conformity with European and North American regulations.

Product Range and Specialties of Hongkong Hjs Electronic Co., Ltd.

Hongkong Hjs Electronic Co., Ltd. offers five DC power solutions: a rain‑proof 12 V DC adapter (2 A), a high‑current CCTV supply (12 V DC, 30 A, 18‑channel), a universal 12 V DC unit capable of 250 W output, an LED‑optimised power supply, and a 36 W switching adapter (12 V DC, 3 A). All products are designed as switched‑mode converters and use plastic housings with internal copper windings.

In the power‑supply market, 12 V DC adapters are typically rated in classes such as IEC 60950‑1 Class A or Class B, with output ripple below 120 mV p‑p and protection features like over‑voltage, over‑current, and short‑circuit shut‑off. LED drivers often require constant‑current regulation and may include dimming interfaces such as PWM. Efficiency grades of 80‑95 % are common, and manufacturers frequently certify units to CE, UL, FCC Part 15, and RoHS for lead‑free compliance.

Trade and Export Information - Hongkong Hjs Electronic Co., Ltd.

China remains a major exporter of SMPS and related power modules, supplying North America, the European Union, and Southeast Asian markets. Products in this segment are usually classified under HS code 8504.40 (static converters) and shipped in cartons or wooden pallets, with anti‑static packaging to protect sensitive electronics. Common Incoterms are FOB Shanghai or CIF Hong Kong, depending on buyer preference.

Importers typically require CE marking for EU entry, UL listing for the United States, and RoHS compliance for hazardous substance limits. Freight is often arranged in 20‑ft or 40‑ft containers, with each unit packed in individual poly‑foam inserts to prevent vibration damage. Customs clearance may involve submission of test reports for electromagnetic compatibility (EMC) and safety assessments.

Sourcing from Hongkong Hjs Electronic Co., Ltd. - Buyer Guidance

Buyers should request the full technical datasheet, including input voltage range, efficiency curve, and protection specifications, before placing an order. Verification of CE, UL, or RoHS certificates is standard practice, and a sample unit can be used to confirm voltage tolerance, ripple, and thermal performance under load.

Typical minimum order quantities for custom‑branded adapters range from 100 to 500 pieces, with standard stock items often available for shipment within 15 - 30 days after order confirmation. When assessing a new supplier, confirm the production lead time, packaging details (anti‑static bags, double‑wall cartons), and the availability of third‑party test reports such as IEC 60950‑1 compliance.

What types of power supplies does Hongkong Hjs Electronic Co., Ltd. provide?

The catalogue lists a rain‑proof 12 V DC 2 A adapter, a 12 V DC CCTV power supply rated at 30 A with 18 channels, a universal 12 V DC 250 W unit, an LED‑specific power supply, and a 36 W switching adapter delivering 12 V DC at 3 A.

Which voltage and current ratings are standard for the listed items?

All five items output 12 V DC; current capacities range from 2 A to 30 A, and power ratings span from 36 W to 250 W, matching typical specifications for DC adapters and SMPS used in consumer electronics and surveillance equipment.

What certifications should a buyer request for these products?

Buyers should ask for CE marking for EU markets, UL listing for the United States, and RoHS compliance certificates to confirm the absence of lead, mercury and other restricted substances. Additional test reports for IEC 60950‑1 or IEC 62368‑1 safety standards are also common.

How are these power supplies usually packaged for export?

Export shipments commonly use anti‑static poly‑bags for each unit, placed inside reinforced cardboard boxes or wooden crates, and then loaded onto pallets for container transport. This packaging protects against static discharge and mechanical shock.

What are typical HS codes for products like these?

DC power adapters and static converters are generally classified under HS Chapter 85, heading 8504.40 (static converters) or heading 8504.31 (power supplies for telecommunications equipment), depending on the exact application.

What are common lead times and minimum order quantities?

For stocked items, manufacturers in China often quote a lead time of 15 - 30 days after order confirmation. Minimum order quantities for standard models usually start at 100 units, while customized or branded units may require 500 units or more.

Which regions import Chinese power supplies most frequently?

Major importers include the United States, the European Union, Japan, South Korea, and emerging markets in Southeast Asia, where the demand for consumer electronics, CCTV systems and LED lighting drives the need for reliable DC power modules.