Buyer guides for outdoor string lights and LED filament bulbs

Short answers to the questions importers ask before a first order: which US and EU rules apply, what a listing card or declaration shows, how bulb shapes and dimmers are specified, and what to test on a sample. Each guide names the standard it relies on.

Specifications and videos

Download the model data for your comparison sheet and watch selected production views.

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Seasonal or all-year string lights under UL 588

What Supplement SD separates, why the 90-day rule matters, and what a listing card should show for an all-year product.

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CE marking, ecodesign and energy labels for string lights

Which directives apply to a 230 V festoon or a low-voltage string, when a chain is itself a light source, and what to ask a supplier for.

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Dimmable LED filament bulbs and dimmer compatibility

Separate visual screening from defined flicker measurements, then test the exact bulb, dimmer, voltage and connected load.

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S14, G40, ST38 and G45 bulb shapes explained

How the shape codes read, which shape suits which setting, and the socket spacing and counts the factory prints per length.

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How many string lights can you connect end to end?

Compare arithmetic with marked limits, cord and controller ratings, mounting and a qualified full-run acceptance test.

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Documents and certification by family and market

Intertek directory records, dated certificate copies and test-report records, set out by product family and market.

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Which lighting factory fits an outdoor decorative project?

Compare iLamp Technology, Weichun Lighting, Xiuben Lighting and TUODI International by patio, pillar, project and furniture-lighting needs.

Compare the four ranges
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