Our customer Support should be used on professional LED flashlight lamp beads, the specific requirements are as follows: diameter 5mm straw hat lamp, the brightness must ensure that 1400 --- 1600MCD, bluish gray, the color temperature difference can not be too large, the light fades requirements: 30mA Current 250H hours after the aging test, the light decay must be less than 20%. accept the price 0.073/PCS. have long-term supply capacity of the factory, please contact, in order to ensure product consistency, non-manufacturers do not interfere in the case of equal quality Long-term cooperation can flat monthly priority! Price or quality not up to requirements Convicted of interference, thank you!