从China供应商批量进口5*1w Led Bulb

The 5*1W LED bulb from Alessen Electronic Industries Co., Limited is a compact retrofit lamp built around five discrete 1 W LED chips in an integrated array, delivering 450 lumens from a 60 by 105 mm form factor. It operates across a wide input-voltage range of AC 90 to 265 V at 50/60 Hz, making it compatible with mains supplies in North America, Europe and most of Asia without external transformers. The housing weighs 103 g, a figure that suggests an aluminium or thermally conductive plastic body rather than a heavy ceramic or fully glass envelope. The driver is likely a capacitive-dropper or simple switched-mode design given the cost-sensitive positioning, though the exact topology and power-factor specification are not stated in the source data.

Thermal management is critical for a 5 W package in a 60 by 105 mm envelope. Typical industry practice for this class of bulb uses an MCPCB (metal-core printed circuit board) carrying the LED chips, bonded to a finned aluminium housing or a thermally conductive polymer. The chips themselves are likely mid-power 2835 or 5730 surface-mount packages with a nominal forward voltage of 3.0 to 3.4 V each, wired in series or series-parallel depending on the driver architecture. Colour temperature, CRI and luminous efficacy are not given; standard commercial offerings in this segment usually sit at 2700 to 6500 K with CRI 70 to 80 and efficacy of 80 to 90 lm/W. Beam angle, whether the optic is a simple diffuser or a refractor, and IP rating for enclosure protection are absent from the listing and should be confirmed directly.

Primary applications include commercial down-lighting, pendant fixtures in retail spaces, task lighting in offices and low-bay industrial luminaires where the 450 lm output replaces an equivalent 40 to 50 W incandescent or a 8 to 10 W compact fluorescent lamp. The wide voltage input suits export-oriented projects with mixed grid conditions. Buyers should request the LM-80 report or equivalent chip-life data, the actual efficacy figure in lumens per watt, and whether the 2-year warranty covers driver failure, LED lumen depreciation below 70 percent, or both. Alessen Electronic Industries Co., Limited is based in Shenzhen's Baoan district, a region with dense LED component and driver supply chains, which supports competitive sourcing but also requires careful supplier verification.

Alessen Electronic Industries Co., Limited is registered at 3rd Industrial Zone, Yanchuan Yancey Road, Baoan, Songgang, Shenzhen, 518102, China, placing it in one of the world's most concentrated electronics manufacturing corridors. The supplier carries a harbor trust tier and an imported supplier-tier designation on the platform, with a response rate currently showing 0.00 percent and no recorded average response hours. No information is provided about year of establishment, factory ownership (owned or trading company), registered capital, production floor area, employee headcount, ISO 9001 or ISO 14001 certification, or major client references. Buyers should verify these fundamentals independently before committing to volume orders.

The product description frames Alessen as a source of energy-efficient commercial lighting, but the listing does not indicate whether the company performs in-house SMT assembly, LED chip packaging, or driver design, or whether it sources completed lamps from a network of subcontractors. Shenzhen's Baoan district offers both fully integrated manufacturers and pure trading houses, so factory audit and production-line verification are advisable. The 2-year warranty mention is positive, yet without clarity on whether it is backed by in-house technical service or third-party insurance. Importers should request the business licence, any existing test reports (IEC 62717, LM-80, ERP), and sample units for independent photometric and safety testing before placing bulk orders.