22W T5 Circline Fluorescent 3000K 2GX13 vs Satco S6501 T9 Circline Lamp

These two 22-watt circline lamps are not interchangeable: the 3000K lamp uses a 2GX13 base and the Satco S6501 uses a G10q base. Check your fixture's socket before choosing. The 3000K lamp is the better light for living spaces, with 1900 lumens, 82 CRI and a 12,000-hour rating. The Satco is a 6500K daylight lamp at 980 lumens and 76 CRI, so it suits utility areas where bright white light matters more than color quality.

• Choose the 22W T5 circline if your fixture takes a 2GX13 4-pin base and you want warm white light with high CRI and more output.
• Choose the Satco S6501 if your fixture takes a G10q 4-pin base and you want cool daylight for a kitchen, garage or utility space.