? Super bright with normal sign. ? Absolute 100% waterproof and corrosion prevention,enabling their normal working in all bad conditions. ? Modules connected without intermittence or socket, ensuring a constant and stable system voltage. ? Low quantity of heat, no toxicant produced. ? Low voltage, low power consumption. ? Free of maintenance within 5 years and the working life of the modules lasts 100 thousand hours. ? Working temperature:-20 degree to +70 degree. ? Storage temperature: - 30 degree to +80 degree