The base part of the prototype system is made by aluminium which acts as protections to the inner side of the system consist of the circuit, LED lamp and fan.


The cover part of the prototype system is also made by aluminium which also acts as protections to the inner side of the system consist of the circuit, LED lamp and fan.



Fan is the additional function for this system because it is function as a coolant for the system includes the electronic circuit and the LED lamp.


A light-emitting-diode (LED) lamp is a solid-state lamp that uses light-mitting diodes (LEDs) as the source of light. Since the light output of individual light-mitting diodes is small compared to incandescent and compact fluorescent lamps, multiple diodes are used together. LED lamps can be made interchangeable with other types. Most LED lamps must also include internal circuits to operate from standard AC voltage. LED lamps offer long life and high efficiency, but initial costs are higher than those of fluorescent lamps.


A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. In this case, the sensor is function to detect the existence of light in the room or building area.


A screw, or bolt, is a type of fastener characterized by a helical ridge, known as an external thread or just thread, wrapped around a cylinder. Some screw threads are designed to mate with a complementary thread, known as an internal thread, often in the form of a nut or an object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects. For this case, screw is the important component to connect the body cover and the body base.


In electronics, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts. Each set of contacts can be in one of two states: either 'closed' meaning the contacts are touching and electricity can flow between them, or 'open', meaning the contacts are separated and no conducting.

For this case, the switch plays the main role for the system to function. There are three mode of function consist of off mode which depend fully from fibre optic cable, automatic mode which is the fibre optic will he help by the LED lamp if the sunlight is not give a bright illumination, and finally the manual mode which is the LED lamp will function as a usual lamp.

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