Sylvania Circular Fluorescent Tubes T9

Ceilings and mirrors that still rely on circular fluorescents need stable optics, honest gear pairing, and easy service. This page targets estates where fixtures are in good condition and photometrics are already approved—bathrooms, corridors, counters, and signage rings—so you can keep housings and only control energy and maintenance.

sylvania circular fluorescent tubes t9 for legacy luminaires

Installers lean on sylvania circular fluorescent tubes t9 when round diffusers must stay and the driver swap has to be painless. Typical families: 22/32/40 W with G10q four-pin caps, diameters around Ø216/Ø300/Ø400 mm, neutral and warm whites (2700/3000/4000/6500 K) in ≤3-step SDCM, CRI 80 standard. On quality HF ballasts you’ll see faster warm-up, calmer flicker, and quieter acoustics than on magnetic sets.

sylvania t9 fluorescent lamps range and formats

Formats map to common rings: slim 22 W for compact domes, 32 W for medium bulkheads, 40 W for larger lobby canopies. Expect ~1,350–3,200 lm depending on wattage, CCT, and ballast factor. Holders are keyed for sylvania t9 fluorescent lamps so lamp alignment stays consistent behind patterned diffusers; sockets should be inspected for spring force before relamp.

sylvania round fluorescent lighting technical specifications

Electrical behaviour is set by the ballast: PF ≥0.95 and THD ≤10–15% on HF electronic gear; magnetic sets depend on the PFC capacitor. Preheat/programmed-start HF extends switch life in presence-controlled spaces. Lifetime sits ~10,000–20,000 h to maintenance thresholds; cycling and hot canopies are the main drivers. Safety/EMC touchpoints: EN 61347 (control gear), EN 61000-3-2 and EN 55015, photobiological assessment EN 62471. Lamps and caps follow IEC 60061; lampholders to EN 60400. For documentation, we tag runs as sylvania round fluorescent lighting with ballast class and CCT per zone so colour doesn’t drift between phases.

sylvania circular tube lamps applications and compatibility

Apartments and hotels keep neat domes over entries and baths; offices use rings in small rooms and copy areas; retail runs circular displays; hospitals favor sealed faces that wipe clean. Two checks prevent callbacks: confirm HF compatibility if you retain the ballast (some older ECGs don’t like high switching rates) and match starter type if you’re keeping magnetic gear. With sylvania circular tube lamps, emergency inverters remain upstream; label the tray after any wiring change.

Integration with Sylvania control gear

HF ballasts to IEC 61347-2-3 with programmed start protect cathodes in presence-controlled zones; DALI-2 ballasts add scenes and run-hour logs. Where retrofit to LED is scheduled later, choose ballasts that can be retained in the interim so the luminaire body and diffuser stay in service. Stock Sylvania starters/ignitors as a set with rings to keep maintenance predictable around sylvania fluorescent ring tubes.

Product and standards detail for engineers

• Wattages and sizes: 22 W (Ø≈216 mm), 32 W (Ø≈300 mm), 40 W (Ø≈400 mm); G10q cap; ring cross-sections sized for shallow domes.hotometric: CRI 80 typical; CCT 2700/3000/4000/6500 K; ≤3 SDCM; lumen maintenance defined by ballast and ambient.
• Electrical: 220–240 V systems; HF preheat/programmed start recommended; magnetic with correct PFC still valid in static-on applications.
• Thermal/IP: operate in −10…+40/45 °C luminaires; IP20 for open rooms, higher when sealed; use stainless fixings near moisture.
• Compliance: EN 60598 luminaires; EN 60400 lampholders; WEEE end-of-life handling for mercury.

Selection criteria for B2B clients

• Photometrics: target vertical vs horizontal lux under the diffuser; verify ring size behind patterned lenses.
• Electrical: choose HF programmed-start for presence control; confirm PFC health on magnetic; publish ballast/lamp pairings.
• Operations: set minimum on-time to curb cycling; group relamp by zone to stabilise colour; barcode trays for audit.
• Logistics: one diameter per room type; stock gaskets and lenses that commonly crack late in programmes; kit sylvania compact circular lamps with matching holders when sockets show wear.

Energy and migration planning

Where audits demand quick kWh wins without body changes, sylvania energy saving t9 lights on HF ballasts deliver calmer flicker and higher system efficacy than magnetic lines. For staged LED moves, map ring sizes to future circular LED plates so bezels, screw patterns, and diffuser stands are reused; document which wings retain T9 and which convert, to avoid mixed wiring on a single circuit.

Procurement notes and kitting

Room bundles should include lamps by diameter/CCT, HF ballast (if upgrading), starters for legacy magnetic bays, seals, and label frames. Keep spare diffusers at 2–3% overage—scratches show up during close-out. We recommend pairing sylvania fluorescent ring tubes with the same EAN/MPN family across floors to prevent colour seams.

Selection guide for Sylvania T9 projects

Start with diameter and wattage that match the dome; lock CCT/CRI by area; select HF programmed-start where presence controls are present; declare ballast factor and emergency method on the drawing. If service history shows brittle holders, include sylvania compact circular lamps with new lampholders in the first drop to reset wear.

Advantages of working with Bankoflamps

Pricing aligns to room schedules and we expose live EU stock before crews are booked. Quotes land in about an hour with EAN/MPN so variants stay locked. Your portal shows lead times, shipment status, and downloadable price lists with planning-grade validity windows. Approved accounts can use post-payment up to 30 days. We consolidate partials to cut freight, and your account manager cross-checks ring diameter, wattage/ballast pairing, CCT/CRI, emergency method, gasket sets, and diffuser compatibility against your drawings so cartons arrive site-ready across France, the Baltics, Germany, Spain, Italy, Belgium, and the Netherlands.