White LED Application parameters: 
 1, Current :17-18 .3 mA (this is the best drive current); maximum use of current must not exceed 60mA; 
 2, voltage 2.8-3.6V (instantaneous voltage lamp beads required no more than 5V, LED lights on the beads on either damaged or severely damaged beyond repair); 
 3, ambient temperature -20 ℃ ~ +40 ℃ (thermal design requirements of the lamp are doing better, LED lamp pins temperature must not exceed 60 degrees); 
 4, if the current time in the 14-20mA, 1mA each lower current, the brightness of the corresponding 4% reduction; 
 5, the power of the time in the 43-46mA is 0.12W, while the 46-53mA is 0.15W, while the 54-60mA is 0.18W; 
 6, the light sheet welding power after a good test, make sure to carefully check the electronic components are not connected to the phenomenon of tin, be sure there is no short circuit light board, if short, will definitely have LED lights for damage or serious damage to the beads , or will show up immediately, or to show up until a few days or longer, resulting in a hidden hazard, so that many users in the industry have occurred many times, this is particularly special to note! ! !