Made the Right Way the Good Way

Reimagined Daylight Glow

The GoodBulb HM23SL/5K 23-Watt GU24 Mini Spiral Compact Fluorescent Lamp delivers crisp, invigorating daylight illumination at 5000 Kelvin. Designed for clarity and productivity, this daylight white bulb enhances visibility and reduces eye strain, making it ideal for offices, workshops, and task-oriented environments. Its 1600-lumen output recreates the brilliance of natural daylight, ensuring vivid color contrast and energized spaces where focus and performance matter most.

Power and Versatility

Operating on standard 120-volt circuits, this 23-watt CFL is engineered for maximum light output and long-term reliability. With an impressive 10,000-hour rated life, the HM23SL/5K lasts up to 10 times longer than comparable incandescent bulbs, significantly reducing maintenance and replacement costs. Its GU24 twist-lock base ensures secure installation and compatibility with a wide variety of ENERGY STAR® certified fixtures. This bulb is best suited for ventilated fixtures to maintain peak performance and longevity.

For the Love of Color

Delivering a high Color Rendering Index (CRI) of 82, this compact fluorescent reveals true-to-life colors in every setting. The 5000K daylight tone replicates natural sunlight, enhancing clarity in retail displays, studios, classrooms, and kitchens. Experience balanced illumination that enlivens your environment without harsh glare or blue overtones — lighting that is both bright and comfortable.

Rough Service Reliability

Constructed for dependable performance, this CFL is built to handle the rigors of continuous use in both residential and commercial applications. The spiral design maximizes lumen efficiency while minimizing space requirements, making it ideal for enclosed or open fixtures that need a strong, steady light source. Designed for use in well-ventilated fixtures, this lamp maintains consistent light levels even under demanding conditions.

Effortless Operation

Featuring instant start technology, the HM23SL/5K powers on quickly without flicker or delay. It provides steady, uniform illumination ideal for general ambient lighting or focused task lighting. Although non-dimmable, this CFL maintains stable light output from the moment it’s switched on, offering reliable brightness every time.

Built to Last

Every GoodBulb is engineered from high-quality components for durability and extended service life. Unlike inferior lamps that fail prematurely, GoodBulb CFLs are tested for longevity and consistent performance. Each bulb meets strict quality standards to ensure dependable lighting across all applications — from residential to commercial and industrial environments.

Guardian of Prosperity

Replacing 100-watt incandescent bulbs with 23-watt CFLs can save up to 77% in energy costs. For example, operating 100 of these bulbs for 12 hours per day could save your business over $9,000 in five years, while reducing your carbon footprint. Fewer replacements mean less waste and less maintenance, helping both your bottom line and the planet.

Xtreme Life Guarantee

The HM23SL/5K delivers a long 10,000-hour life — 10x longer than standard incandescent bulbs. Each CFL is backed by GoodBulb’s quality assurance and end-of-life recycling program, helping you light responsibly and sustainably.

Impactful Lighting

A GoodBulb is more than just a light bulb — it’s a brighter way to do good. Every purchase supports our mission to bring clean, solar-powered light to families living without electricity. Together, we can reduce waste, save energy, and illuminate lives around the world — one GoodBulb at a time.