Best Simultaneous Charging Supplier & Factory

Heikki eliminates thermal buildup and voltage drop through three core design principles: First, we utilize continuous, one-piece stamped tin-phosphor bronze busbars (Cu-Sn-P alloy) with a cross-sectional thickness ≥0.6mm, avoiding the high resistance associated with soldered spot wires. Second, internal high-current lines are segregated from step-down DC modules to avoid heat compounding. Third, every export product utilizes certified pure oxygen-free copper conductors in the external power leads (e.g., 3x1.0mm² to 3x1.5mm² for 2500W-3250W ratings; 14AWG for 1875W US ratings), ensuring that terminal line impedance remains low even under sustained continuous load.

We provide full-spectrum engineering services directly from our Jiangmen factory. From initial 3D industrial CAD design, internal structural engineering, rapid functional SLA prototyping, to steel tooling fabrication, our average tooling lead time is 25–35 days. Clients can customize housing silhouettes, cord lengths (from 1m to 15m), cable jacket compounds (heavy-duty rubber, PVC, braided fabric), socket module layouts (mixing Type-A, Type-C, Type-G, and Universal sockets), individual vs. master switch controls, USB-C fast charging power profiles, and custom blister, gift box, or display packaging.

Yes. We regularly handle certification pathways across North America, Europe, the Middle East, Southeast Asia, and Africa. Because our factory holds ISO 9001, ISO 14001, and ISO 45001 accreditations, our technical files, factory audit records, component safety datasheets (CDF), and material test reports are kept current. When you launch a custom OEM model, our engineering department works hand-in-hand with recognized test laboratories (such as TÜV, SGS, Intertek, and DEKRA) to guide your unique model variants through CB scheme testing, CE/UKCA declarations, TISI, SASO Saber registration, or KC mark certifications.

Universal sockets are engineered to accept a wide variety of global pin formats (including Europlug 2-pin, US 2-pin/3-pin, UK 3-pin, and Australian angled pins) inside a single opening. These are ideal for multi-national hospitality, international shipping hubs, and regions with hybrid electrical practices like parts of Africa and Southeast Asia. However, for domestic sales in markets with strict mandatory plug standards (such as the UK under BS 1363, Thailand under TISI 166-2549, or Germany under DIN VDE 0620), dedicated sockets designed exclusively for that market's certified plugs are legally required. Heikki engineers both configurations, ensuring compliance wherever you distribute.

Standard OEM production runs typically require an MOQ of 1,000 to 2,000 units per specification, which accommodates customized housing colors, silkscreen brand logos, and customized packaging artwork. For custom-tooled ODM private molds, project thresholds are established during the tooling quotation phase. Repeat mass production orders average a lead time of 25 to 30 calendar days from formal artwork and deposit sign-off, supported by our 5,000,000+ unit annual output capacity and local raw material reserves in Jiangmen.

Every power strip manufactured by Heikki undergoes 100% automated electrical safety screening before reaching the packaging floor. The sequence includes: (1) Ground bond continuity testing (<0.1Ω); (2) High-voltage AC dielectric insulation test (typically 1500V to 2000V for 1 second without flashover or insulation breakdown); (3) Polarity verification across Line, Neutral, and Earth; (4) Dynamic load test for integrated USB switch-mode rectifiers; and (5) Manual insertion check to verify the smooth operation and retention force of child-safety shutter gates.