http://www.lasereshop.com/green-laserpointer/p-25.html "Do not look down upon the damage from Laser Pointer ." Lv Changfu and his assistant, took out a green laser pen, single point of power "as a solid light source new green LED lamp, the light once entering one of the fundus, the damage of retina is greatly, so the Blue ray harm can not be ignored." http://www.lasereshop.com/green-laserpointer/p-6.html But how much harm it can make? Lv Changfu and his assistant irradiat the match with the Green Laser pointer, not a moment, the match should lighting, "with 1W's green laser pointer burst balloons, lighting firecrackers in the demolition of the powder is very easy". "Be alert to the laser pointer, ask the children not to make the laser pointer as a toy!" Lv Changfu gives advice, he said, to be reasonable use of LED products, to avoid the harm of green ray. According to the national electric light source quality supervision and Inspection Center (Shanghai) on the 27 LED lamp Market Sample survey results show that as long as the product diffusion cover intact, it will not constitute a green light hazard. http://www.lasereshop.com/green-laserpointer/p-27.html Lv Changfu believes that in daily life, to avoid the human eye long time to look directly at the surface of the high powered laser , for the home of the weak awareness of infants and the elderly, should take measures to prevent the light source to the eye. http://www.lasereshop.com/green-laserpointer/p-16.html Choose a diffusion cover (shield) of the LED lamp can decrease the damage of the Blu ray. Be careful not to use 100mw laser , not in the power supply has been shutdown for lampshade, more do not remove the diffusion Zhao Zhaoming; choose single power is relatively small the LED lamp as the light source, and avoid light beads exposed directly or with transparent cover for the LED lamp; students with lamp color temperature selection is best not more than 4000K. The proposed election with warm white color light yellow as well.