About this item MULTI-PURPOSE: 30 watt R39 reflector type light bulbs, replacement bulbs for lava lamps. These bulbs can be used in many applications, primarily for replacement bulbs for lava lamps and other decorative lighting accessories. BENEFIT: Designed to reflect and direct light into the base of the lava lamp to generate enough heat to start the lava, the reflection and flat top make the lava lamp brighter and more vibrant. MORE CONVENIENT: The reflector bulb is flat on top to allow heat distribution differently than a round bulb, it can spread heat evenly and get hot enough to let the lava flow. LIFESPAN. RECOMMENDATION: 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. Any issues (bulbs broken or burnt out), 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 lamp Color Temperature: Warm White 2700K Product Body Material: Glass Product Size: Approx. 39 x 65mm/1.54 2.56 inches Adjustable Brightness: No Function: Beautiful appearance, soft light color, long lifespan Application: Indoor and outdoor decorative lighting Light Fixture Model: E14 Packaging Accessories: Light Bulb*1