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Discharge Lamps, , > Discharge lamps are glass tubes fitted with two electrodes. They emit light as a, result of discharge of electricity through the gases filled in tubes. When a high, potential difference is applied the gas molecules get exited. Exited atoms come, back to their original states for attaining stability. During this process the energy, stored in them will be radiated as light., , > Depending on the difference in the energy levels lights of different colours and, other radiations are emitted., , , , LED ( Light Emitting Di Bulb, , , , LED bulbs are devices that give more light than discharge lamps, and incandescent lamps. They work using low power., , , , , , , , , , , , , , , ADVANTAGES OF LED BULB, , = There is no filament, there is no loss of energy in the form, of heat., , = There is no mercury in it, it is not harmful to environment., , = Requires only small quantity of power., , = Long lasting, , = High efficiency, , , , , , , , , 13
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PARTS OF LED BULB, , , , , , , , , , , , , , , , , , , , , , , , , , , , Part Use, By ag Connects the bulb to, | the holder, [A], Base Unit, >". It is an arrangement, = X of absorbing heat, B), Heat sink, Metal plate that fixes, it to the holder, [c], Base Plate, é Screws for fixing wires, A. é form LED drive to the, [D] a? base unit., bas j, Back conductor, screws., Function of this is to, convert AC into DC, [E] and supply necessary, output voltage, Power supply, Board, , LEDs are fixed on this, board. In this the, , , , F) ;, , Printed Circuit Board, , positive and negative, polarities are marked., , , , , , (LED Chip Board), , a, , Diffuser cup, , , , , , This is the part from, which light comes out, of the bulb.
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How can the LED bulbs be dis of scientifically?, , , , Separate the plastic, electronic and metal components of LED, bulb and transfer them to their respective disposal units.
