A light emitting diode is disclosed, wherein the light emitting diode comprises a metal reflective layer for enhancing the light reflection efficiency inside the light emitting diode and reducing the resistance to avoid the power loss. Providing the modulated power signal may include receiving an audio signal to create the modulated power signal, which may include fetching a down-converted audio signal and the audio signal from a memory device andor frequency-down-converting the audio signal to create the down-converted audio signal. The tab has a nose portion separated from a lift end by a central webbing. The common equipment includes expandable elements including, for example, a single hub modem chassis that can expand to communicate with more than one communication satellite and a protocol processor that can share a protocol processing task with another protocol processors. Especially for audio data, the malicious interceptor cannot hear the audio data clearly although it is merely partially encrypted. The applicator device includes a closure cap for mounting on a container, at least one product guide located on the closure cap for dispensing hair colorant, and at least guide prong located adjacent to the product guide.