The specific value is: 3.5mm*2.8mm*1.6mm, but its luminous brightness cannot be underestimated, its brightness can reach 6-7LM (pure white light, warm light is slightly smaller). Its working voltage is the same as ordinary led, only 3.0-3.2V, and the current is the same 30MA. Because the size of 3528 SMD LED is relatively small and the workmanship is relatively fine, manual welding is not convenient, but it does not mean that it cannot be welded. The welding temperature should be controlled within 240 degrees, otherwise it will burn the more expensive SMD LED. The parameters of the LED chip determine that it must be a popular LED, so it is often used in high-end civilian energy-saving lamps, car dashboards, and LED light strips (one of our company's LED patch strip lights is more cost-effective than ordinary Straw hat lamp beads with high light strips), mobile phone backlights and buttons, instrument backlights and products that require small LEDs, LED backlights, flat backlights for switches and signs, caller ID, flash, automotive, audio, indoor display, Lighting market!