Circle PLC-18W 827 CFL Bulb, G24q-2 4-Pin 18W 2700K Warm White, 4 Pack — Open-Box, 48% Off

DIRECT BALLAST-COMPATIBLE REPLACEMENT — Designed as a drop-in replacement for fixtures using a G24q-2 (4-pin) base socket; works with most electronic instant-start and programmed-start CFL ballasts with no rewiring required. Ideal for office downlights, wall sconces, floor lamps, hotel room fixtures, desk lamps, and bathroom vanity lights.

REPLACES MAJOR BRAND EQUIVALENTS — Direct replacement for Sylvania 20683 (CF18DD/E/827/ECO), Philips 38329-9 (PL-C 18W/827/4P/ALTO), GE 97594 (F18DBX/827/ECO4P), Satco S6734, and Panasonic FDS18E35/4. If your existing bulb carries any of these part numbers, this Circle CFL is the confirmed compatible replacement.

18-WATT ENERGY-EFFICIENT COMPACT FLUORESCENT — Consumes only 18 watts while delivering comfortable warm white illumination equivalent to much higher-wattage incandescent output. Rated for 10,000 average hours of service life, reducing how often you need to replace bulbs in hard-to-reach fixtures, commercial applications, or high-use environments.

2700K WARM WHITE — 82 CRI COLOR QUALITY — The 827 color code means 2700 Kelvin warm white light — the same inviting, residential tone as traditional incandescent bulbs — making this ideal for living areas, hospitality settings, hotel rooms, and anywhere a comfortable, relaxed ambiance is needed. 82 CRI ensures colors appear true and natural under this light.

4-PACK VALUE WITH QUALITY-VERIFIED PERFORMANCE — Each pack contains four individually tested 18W PL-C CFL bulbs. T4 double tube construction (5.8" to 6" overall length) in a compact footprint. Manufactured to exacting dimensional and performance standards as a verified substitute for original OEM bulbs.

Circle PLC-18W 827 Compact Fluorescent Bulb — 18W, G24q-2 4-Pin Base, 2700K Warm White The Circle PLC-18W/827/4P is an 18-watt compact fluorescent plug-in bulb designed as a precision direct replacement for G24q-2 four-pin base sockets. Whether you're maintaining a commercial space, replacing aging hotel room fixture lamps, or swapping out a burned-out bulb in a residential floor lamp or wall sconce, this bulb installs directly into your existing fixture without any rewiring. Compatible Fixtures and Applications This bulb is engineered for fixtures using the G24q-2 four-pin base — the standard found in recessed downlight canisters, table lamps, floor lamps, wall-mounted sconces, vanity fixtures, hospitality and hotel guest room lighting, office task lighting, and commercial display lighting. It operates on existing CFL electronic ballasts (instant-start and programmed-start types), making it a true drop-in replacement that requires no electrical modifications. Direct Replacement Cross-Reference This Circle CFL replaces the following OEM part numbers: Sylvania 20683 / CF18DD/E/827/ECO — Philips 38329-9 / PL-C 18W/827/4P/ALTO — GE 97594 / F18DBX/827/ECO4P — Satco S6734 — Osram Dulux D/E 18W/827 — and Panasonic FDS18E35/4 (used in select Panasonic WhisperLite exhaust fan fixtures including FV-08VQL4, FV-11VQL4, FV-15VQL4). If your current bulb carries any of these part numbers, this Circle lamp is the confirmed compatible substitute. Technical Specifications Wattage: 18W | Base: G24q-2 (4-Pin) | Color Temperature: 2700K Warm White | Color Rendering Index: 82 CRI | Bulb Shape: T4 Double Tube | Rated Average Life: 10,000 hours | Overall Length: approximately 5.8–6 inches | Technology: Compact Fluorescent (CFL) | Ballast Required: Yes — operates with compatible electronic ballast Light Quality The 827 designation — "8" for 82 CRI and "27" for 2700 Kelvin — means this bulb produces warm, incandescent-like white light with strong color rendering. 2700K light is the residential standard: flattering for skin tones, comfortable for prolonged occupancy, and appropriate for hospitality, bedroom, living area, and ambient commercial lighting environments. Pack Contents Each listing includes four (4) Circle PLC-18W/827/4P compact fluorescent bulbs packaged together. Circle is a lighting-specialist manufacturer producing compact fluorescent, T8 fluorescent, and plug-in CFL solutions for both commercial and residential markets.