Lave Lamp Light Bulb -25 Watts - R39 Shape - 150 Lumens - 5000 Life Hours - 120 Volts - E17 Brass Intermediate Base - Reflector

GoodBulb 25R39/LAVA 25W Incandescent Lava Lamp Light Bulb: Specialty Reflector for Classic Flow
R39 Reflector Incandescent Light Bulb with a 25-Watt output and E17 Intermediate Brass Base. Emitting 150 lumens of soft, focused light at 120 volts, this bulb is specifically designed to generate the ideal heat and illumination required for activating the iconic wax flow in lava lamps. With a 5,000-hour rated life, it’s the go-to bulb for maintaining mesmerizing motion in decorative and novelty lighting.

Why 25W Reflector for Lava Lamps?

Lava lamps don’t just need light—they need heat. The 25W R39 reflector bulb focuses infrared warmth directly upward into the lamp globe, activating the wax and creating that calming, ever-shifting motion. Its warm glow also adds cozy ambiance, making it a staple in retro and mood lighting setups.

✔ Classic Lava Lamp Activation – Produces the exact heat needed to start and sustain wax movement.
✔ Decorative Accent Use – Ideal for vintage-style fixtures, novelty lamps, and ambiance-focused spaces.
✔ Intermediate Base Compatibility – Fits most lava lamp sockets with secure brass threading.

Built for Reliable Heat and Glow

✔ 150 Lumens Soft Glow – Subtle light for mood lighting and decorative focus.
✔ 5,000-Hour Rated Life – Designed for extended run times in low-wattage applications.
✔ R39 Reflector Shape – Directs heat and light precisely into the lava lamp globe.
✔ E17 Brass Intermediate Base – Corrosion-resistant contact for stable electrical performance.
✔ 120 Volt, 25 Watt – Balances light output with consistent thermal generation.

Specialty Heat Bulbs – Why Incandescent Still Matters

Unlike most lighting applications that benefit from LED upgrades, lava lamps need heat, and LED bulbs are designed to stay cool. That’s why incandescent remains the standard for lava lamp functionality.

LED Alternatives for Non-Heat Applications

If you’re using R39 bulbs in accent lighting (but not lava lamps), LED reflector bulbs are an energy-efficient solution:

✔ Use 80–90% Less Energy
✔ Cool to the Touch – Safe for enclosed spaces
✔ 15,000–25,000 Hour Lifespan
✔ Mercury-Free & Eco-Friendly

⚠️ Important: Do NOT use LED bulbs in lava lamps—they won’t provide the heat required to activate the wax.

Responsible Disposal – The GoodBulb Way

While incandescent bulbs don’t contain mercury like CFLs, they still need careful handling when disposed of.

✅ Prepaid Recycling Options Available – Ask us how to bundle old bulbs for safe recycling.
✅ Sustainable Practices Encouraged – Keep broken glass and brass bases out of landfills.
✅ Support Responsible Use – Choose quality bulbs that last longer and reduce waste.

Keep It Flowing. Keep It Glowing.
Your lava lamp is a centerpiece of relaxation and retro charm—don’t let a burned-out bulb stop the show. Replace it with a dependable 25R39/LAVA bulb and enjoy uninterrupted flow, glow, and vibe.

Need extras? Stock up in multipacks to always have a spare on hand.
Questions about compatibility? Contact our team for guidance on the right reflector bulb for your fixture.