Ushio BC8865 CF26DE/841 26W CFL Bulb

The Ushio BC8865 CF26DE/841 is a 26-watt compact fluorescent lamp producing 1800 initial lumens at a 4100K color temperature — a neutral cool white that reads clean and businesslike under both human perception and camera sensors calibrated to daylight. The CRI of 82 places it in the adequate-but-not-precise tier of color rendering: suitable for general commercial illumination, retail environments, and utility studio applications where color fidelity is a secondary concern to consistent output and efficiency. At 69 lumens per watt, it offers meaningful efficiency over incandescent alternatives in fixtures that run for extended hours. The G24q-3 four-pin base is a commercial-standard plug-in format, common in downlight, task lamp, and utility fixture designs.

The 10,000-hour rated average lifespan is the bulb's most commercially practical specification — in an 8-hours-per-day commercial installation, that translates to over three years before a scheduled replacement. Build quality follows Ushio's industrial manufacturing standard: consistent pin alignment, stable phosphor coating, and reliable cold-start behavior. For lighting designers and photographers evaluating this as a studio source, the critical limitations are the CRI-82 rendering (insufficient for accurate color evaluation or skin tone matching under camera) and the inherent AC flicker behavior of CFL technology at certain video shutter speeds. Within its intended application — a reliable, efficient, long-life cool white source for high-run-time commercial fixtures — it performs exactly as its specifications describe.