Modern Simplicity, Adopting environmentally friendly and pollution - free LED light source with mild color. It is strong, durable, lightweight, small in size, good impact resistance and reusable, not easy to break. Display modules can make you clearly to check these data. It can emit light under the proper voltage and current conditions. Easy and quick to use, this Electronic LED signs display module is plug and play, with no need for a tedious wiring process.