Deuterium lamps widely are used in VWD, DAD and UVD on LC (liquid chromatography). Their steady light source can accurately meet the needs of analytical instruments and experiments. They have high radiation intensity and high stability which contribute to a stable power output and require little maintenance during the use. Our deuterium lamp has very low noise in the whole service lifespan. All the deuterium lamps have same performance to original products, while greatly lower experiment costs.