Made the Right Way the Good Way

Reimagined Incandescent Glow

The GoodBulb 42W T4 Spiral CFL in 2700 Kelvin Warm White recreates the soft, comforting ambiance of traditional incandescent lighting while delivering modern energy efficiency. Its warm glow elevates relaxation, enhances visual comfort, and brings familiar incandescent warmth to homes, restaurants, hospitality spaces, and work environments. The frosted spiral design provides smooth, even illumination ideal for general lighting, task lighting, or multi-fixture installations.

Power and Versatility

Watt for watt, this 42-watt CFL delivers impressive performance, producing 2600 lumens of bright, warm light while using a fraction of the energy required by older incandescent lamps. Designed for 120-volt indoor applications, the T4 Spiral CFL installs easily into any E26 medium screw-base fixture. Suitable for table lamps, ceiling fixtures, wall sconces, and select commercial fixtures, this high-output CFL acts as a powerful replacement for higher-wattage incandescent and halogen lamps.

For the Love of Color

Warm 2700K light enhances comfort and visual appeal, creating a welcoming glow that supports cozy atmospheres. With its smooth warm-white spectrum, spaces feel natural, flattering, and inviting. This CFL produces consistent, stable color that maintains visual clarity and enhances room aesthetics without harshness or glare.

Rough Service CFL

Engineered for reliability, this T4 Spiral CFL is built to operate for 10,000 hours, significantly reducing maintenance and replacement cycles. High-quality electronic components ensure stable performance from day one. The durable spiral design maximizes lumen output while maintaining thermal stability for long-lasting, dependable operation.

Effortless Operation

This CFL delivers instant warm illumination with reliable startup technology. While non-dimmable, its steady, flicker-free output ensures a comfortable and consistent lighting experience throughout its lifetime.

Built to Last

Every CFL is constructed with premium components designed for longevity. Where many brands cut corners, GoodBulb maintains strict quality standards for internal electronics, phosphor coating, and glass construction. Each lamp is intentionally built for stable, long-lasting use in daily lighting environments.

Guardian of Prosperity

The average kilowatt-hour cost in the USA is 17 cents. Replacing older incandescent or halogen bulbs with high-efficiency CFLs can significantly reduce energy consumption and lower operational costs. A business using multiple 42-watt CFLs instead of higher-wattage alternatives can save thousands over several years while reducing HVAC strain and maintenance expenses. For a customized energy savings audit, consult a Lumen Master.

Xtreme Life Guarantee

With a 10,000-hour rated life, this CFL lasts many times longer than traditional incandescent lamps. Supported by GoodBulb’s commitment to quality and sustainability, it also qualifies for end-of-life recycling to ensure responsible disposal.

Impactful Lighting

A GoodBulb is more than just a light bulb—it's an investment in energy savings, reduced waste, and environmental responsibility. Long-lasting, efficient lighting reduces strain on natural resources and lowers carbon impact. As a social enterprise, GoodBulb also supports communities worldwide by providing clean solar lighting for families living without electricity.