About this item VERSATILE: 30 Watt R39 Reflector Bulbs, Replacement Bulbs for Lava Lamp. These bulbs can be used in many applications, primarily for lava lamp replacement bulbs and other decorative lighting fixtures. ADVANTAGE: Designed to reflect and direct light into the base of lava lamps to create enough heat to make the lava work, the reflection and flat top make the lava lamp brighter and more vibrant. MORE PRACTICAL: The reflector bulb is flat on top to allow heat distribution differently than a round bulb, it can dissipate heat evenly and get hot enough for the lava to flow. longer lifespan. RECOMMENDS: Single bulb approx. 39 x 65 mm / 1.54 X 2.56 inches. lava lamps and other lava lamps that use 30W light sources AFTER-SALES SERVICE: 100% Satisfaction Guarantee. In case of any problems (broken or burnt out bulbs), please contact us and we are always at your service. Product parameters: Light source type: R39 Voltage: 220-240V Power: 30W Lumen L: 150lm Specification: R39 Reflector bulb Color temperature: Warm white 2700K Product body material: Glass Product size: Approx. 39 x 65mm / 1.54 X 2.56in Adjustable brightness: No Function: Beautiful appearance, soft light color, long lifespan Application: Indoor and outdoor decorative lighting Lamp holder model: E14 Packaging accessories: Bulb * 1