An EL lamp consists of light emitting phosphor sandwiched between
two conducting electrodes one of which is optically transparent
allowing light to escape. As an AC voltage is applied to the
electrodes, the electric field causes the phosphor to rapidly
charge and discharge, resulting in the emission of light during
each cycle. Since the number of light pulses depends on the
magnitude of applied voltage, the brightness of EL lamps can be
controlled by varying the operating voltage and frequency.
Advantages
1. Harmless- No ultraviolet ray, it is good to human body. 2. Shape arbitrarily- To manufacture the every kind of shape
according to the customer 3. Power is low- At the electricity measure very low hour it also
can give out light 4. Thin- It is the most thin to amount to 0.18 mm below 5.Flection- Give out light under the every kind of shape, can the
flection give out light then adapt to the product's shape can even
fold. 6.No Fever- It is a cold light source that electricity give out
lights the slice, working hour have no temperature to rise and the
work temperature is more lower than fluorescent lamp. 7. Ray is even and soft- Do not gleam and can't make the eye
produce the strain, tired feel. 8.Quankproof- The el sheet is different from the other light
products. it’s not easy because meet the outsider impact but
expiration 9. Life time- EL life span therefore half the period( bright degree
of half) come measuring of that time is 3000-25000 hours