Read more Specification Watt: 25 WattVoltage: 220-250VBrightness: 250lmLamp Base: E14 ses small edison screwLamp Shape: R39Colour Temperature: 2400-2600KMaterial: Glass Lava Lamp Bulb 25W E14 Dimmable The brightness can be adjusted to suit setting by dimmer switch and meet different lighting needs, which is very convenient and practical. An average of 1000 hours of lifespan. Long lasting for indoor use. Item Dimension: Width 39 mm x Height 59 mm. Please check the size before purchasing, Package Included: 2 x r39 25w lava lamp bulb 230v, packaged very well,comes safely wrapped to avoid damage in transit. WARNING: Please DO NOT touch the bulb when it light on, the high temp resist up to 300. Read more LAVA LAMP BULB R39 shape can dissipate heat evenly and get hot enough to allow the lava to flow.