Lava Lamp Bulb 25w E14 R39 Warm White Warm White Reflector Bulb Ses Small Screw Edison Incandescent Spotlight Bulb (pack Of 4)[Suitable for Lava Lamp] Specially designed to reflect and direct light into the base of the lava lamp to generate enough heat to trigger the movement of the lava. & nbsp; [Easy Installation] The standard E14 shape bulb and locking base work well with all regular e14 bulbs. & nbsp; [Size] -R39 lamps have a surface area of 39mm in diameter and an SES socket (E14 Edison small screw). [Application] Ideal for home and professional lighting, illuminate your living room, bedroom, kitchen, garage, bathroom, office or office. [Specifications] Input voltage: AC 220-240V, luminous flux: 150 lm