A semiconductor light emitting structure including a substrate, a patterned structure, a first semiconductor layer, an active layer and a second semiconductor layer is provided. Aywherein: A=Li, Na or K; B=Al or Al+Ga; and 0. Known packagings have marking means which of course confer a certain degree of safety from counterfeiting. Each position regulating member is formed with a slit such that a part of it can be elastically deformed with ease.