Pure Source India Electric Aroma Diffuser Squire Black Color Matte Finish Premium Quality (Clay LAMP) Pure Source India Electric Aroma Diffuser SQUIRE BLACK MATTE FINISH ,water carry capacity is 100 ML it's last about 6 to 8 hrs in one filling ,it is suitable to use in home , office, restroom , conference hall , meeting room etc... electric bulb there to be use is available every where in the market , no need to work hard to finding it.