Retrofit lighting assembly

A lighting assembly (100) adapted to be mounted in a lighting fixture is provided. The lighting assembly comprises at least four sidewall parts (110, 112, 114, 116), a fastening arrangement (122, 124) adapted to secure the sidewall parts to each other, and at least one light emitting element (130). The sidewall parts are adapted to be arranged in the lighting fixture and secured to each other such that they define sidewalls of a four-sided cavity. Further, junctions between the sidewall parts are arranged to be at the comers of the four-sided cavity when the sidewall parts are arranged in the lighting fixture. Each one of at least two of the sidewall parts comprises a support surface (111, 113, 115, 117) adapted to support the lighting assembly in the lighting fixture and to be arranged at different sides of the four-sided cavity when the sidewall parts are arranged in the lighting fixture. Thereby, a lighting assembly that is easier to install is achieved. 提供了种适于安装在照明器材中的照明组件(100)。照明组件包括至少四个侧壁部(110、112、114、1