Common flashlight on the headlights have any requirements, with a few beads?
Common glare headlight generally using high efficiency low power LED lamp, not only because it has good heat dissipation, and light. With more than just 5050 and 3528 beads, which are SMD SMD beads, 3528 single chip, and the power is about 0.06W, 5050 as crystal chip, power is 0.18W, but have slightly larger. Among the 3014 types of beads volume than other flashlight lamp has the advantages of small volume, high LM value (usually 0.1W), made out of finished lamps luminance, and like a fluorescent light and creamy foam ball that can make the dark spots become almost similar to no, brightness is uniform, the overall effect is to give people feel very good. Lamp number depends on the specific requirement, basically no hard and fast rules. Flashlight three five, see how the distribution arrangement.