[Suitable for Lava Lamp] Specially designed to reflect and direct light into the base of the lava lamp. lava to generate enough heat to start the lava moving. [Easy Installation] Standard E14 shape bulb and locking base work well with any regular e14 bulbs. [Size] R39 lamps have a 39mm diameter surface and SES (E14 Edison small screw) socket. [Application] Ideal for home and business lighting, illuminate your living room, bedroom, kitchen, garage, bathroom, study or office. [Specifications] Input voltage: AC 220-240V, luminous flux: 150 lm.