IPIQ

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F21

LIGHTING

F21K

NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR

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9/00

Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers

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F21K9/20

Light sources comprising attachment means

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F21K9/27

Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes

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