danger of lighting effects for the people that are working in the case of too little light will adversely affect his eyes, muscles, working too much because it comes into force, pupils wide open, because it is not clearly visible.the strain of his eyes; the pieces must be strained a muscle pain, twitching of the eyelids to be dizzy dizzy head overlooking the Sleep worse.or go to the contact section is also harmful to human, result was the mind is dull mate , in the present work and restate information in mind, the less likely a result of an accident in the , working occur.
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