Deshun Technology is professional manufacturer on LED lighting. Our main products are LED replacement bulbs for flashlights. You may visit our online company introduction www. Dosoe. net. Flashlight bulbs have many uses, such as general flashlight, emergency lighting of marine products, and tooling 18V flashlight lighting and so on. With service time of 50, 000 hours, the LED flashlight bulbs are much brighter and energy-saving than incandescent bulbs. All our LED products are built-in super efficient LED Driver, which making LED products to be more energy- saving and adaptable to wide-ranging voltages. Such as: 1-9V, 0. 8-4. 2V, 3. 2-9V, 3. 6-9V, 2. 2-12V, 1-3V, 5-30V, and 18V and so on. That is our incomparable competitive advantage. Among them 1-9V for 1W led flashlight bulbs, and 3. 2-9V for 3W LED flashlight bulbs and 5-30V for tooling 18V flashlights enjoy great popularity to our clients. For our dimmable LED flashlight bulbs, we have dimming option from 100%-30%-5%-SOS, and 100%-60%-30%. Any inquiries about LED replacement bubs & lamps, please feel free to contact me .