Replacement bulb: R39 reflector shape and E17 screw base replacement for lava lamp cabinetsand more Application: Works great for standard small lava Good : High reliability -span. R39 shape can dissipate heat evenly and hot enough to allow the lava to . Safe use: stable performance safe use energy saving and environmental protection. Voltage: 220-240V Power: 30W Base: E14 13.6mm Material:aluminum colour:Transparent Package Contents: 1 x light bulb Only the above package content other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.