Custom OEM Adjustable DC Power Supply Factories & Exporters serving Saint Lucia

Our standard and industrial switching power supplies feature active or passive wide-range universal AC inputs (typically 85V–264VAC at 47Hz–63Hz). Unlike lower-grade power supplies designed exclusively for 110V 60Hz or rigid 220V systems, Harlon topologies accommodate LUCELEC's 240V line voltage natively.

Moreover, our magnetics (transformers and PFC chokes) are engineered with high-grade silicon steel and ferrite cores to prevent core saturation at 50Hz, avoiding the excess eddy-current heating common in inferior imports.

Standard open-chassis supplies deployed in coastal environments such as Castries Harbour or Gros Islet often fail due to galvanic corrosion and ionic migration across high-voltage traces. For orders going to the Caribbean, Harlon provides factory-applied automated conformal coating across the entire printed circuit board assembly.

We use moisture-curing polyurethane or silicone resins tested against salt-spray corrosion (ASTM B117 standards). For extreme outdoor conditions, our waterproof LED drivers and potted DC-DC converters offer hermetically sealed IP67/IP68 aluminum casings filled with thermally conductive silicone.

Yes. Our enclosed S-series (e.g., S-120, S-150, S-1200) features onboard multi-turn potentiometers adjacent to the terminal blocks, allowing field calibration of ±10% to ±15% of the nominal output voltage.

This allows technicians to calibrate a 12V supply up to 13.8V for lead-acid float backup, tune a 24V supply to 27.2V, or raise line output to compensate for long cable runs to remote security cameras, gates, or perimeter lighting poles.

We routinely export under Incoterms including FOB Ningbo/Shanghai, CFR, CIF Castries Port, and air courier DDU. For urgent prototype batches or small spare-parts consignments, we partner with DHL, FedEx, and UPS with transit times of 5 to 8 working days into Hewanorra (UVF) or George F. L. Charles (SLU) airports.

For consolidated commercial inventory and distributor restocks, ocean container shipments route from Ningbo directly to the transshipment hubs of Kingston or Port of Spain, connecting to Castries Harbour within approximately 28 to 35 days.

For standard catalog units (such as S-120, S-145, S-150, and S-200), we support low MOQs starting from 50 to 100 units to facilitate market evaluation and electrical contractor stocking. For customized OEM programs—including personalized silk-screened metal casings, buyer labels, custom output wiring harnesses, or altered voltage settings—our minimum production run typically ranges between 200 and 500 units, backed by our 18 years of specialized OEM manufacturing experience.