7-inch T5 22W Fluorescent Bulb vs Philips Circline Fluorescent Lamp 32W

These are different lamps for different fixtures, not interchangeable upgrades. The Zadro T5 is a 7-inch, 22W, 6400K bulb with an inward-facing 4-pin base, made as a replacement for specific Zadro mirror models. The Philips Circline is a 32W, 4100K, 1800-lumen lamp on a G10q base with a rated 12,000-hour life. Buy the one that matches your fixture's socket and diameter; the Philips has the longer rated life and higher output, while the Zadro is the only fit for the named mirrors.

• Choose the 7-inch T5 22W bulb if your fixture is a Zadro MAX110, MAXT110 or MAX2000 mirror and takes a 7-inch circular tube with an inward-facing 4-pin connector.
• Choose the Philips Circline if your fixture takes a G10q 4-pin base and a 32W circular lamp, and you want a cooler 4100K white with a 12,000-hour rating.