T/SLDA 004-2022 LED light string energy efficiency limit and energy efficiency level specification

Scope

Scope: This document specifies the technical requirements and test methods for the energy efficiency of LED strips powered by a rated supply voltage of 250V or lower, either DC or AC at 50Hz or 60Hz. This document applies to indoor or outdoor lighting and decorative LED flexible strips; it does not apply to lamps or luminaires supported by rigid circuit boards, or strips connected in series or parallel using flexible wires or hard wires. Note: Illuminating and decorative LED flexible strips refer to LED strips used for local lighting or decorative lighting (outline frames (line decoration), background lighting, corner lighting, etc.) in places such as dark grooves, cabinets, exhibitions, as well as outdoor building lighting, advertising lighting, or decorative lighting in buildings, billboards, etc. Main technical content: This document specifies the types of indoor or outdoor illuminating and decorative LED flexible strips, and standardizes the marking of LED strips in accordance with the requirements of IEC 60598-2-21:2014, section 21.6. The document sets forth technical requirements in terms of LED strips' dimming, monochrome light, white light, color tolerance, input power, sudden failure, ripple depth, initial luminous flux, color-adjustable light sources, color rendering index, luminous flux maintenance rate, and luminous efficiency. It also standardizes the energy efficiency limits, energy efficiency grades, and energy-saving evaluation values for LED strips. The document specifies the corresponding requirements and conditions for general testing of LED strips, and proposes test methods for each of the above technical requirements.

Development Information

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