4ft Twin 28w Non Corrosive HF Weatherproof Fluorescent Fitting - IP65 Less Tubes
T5 Ultra Thin Fluorescent Fitting High Frequency Electronic Soft Start Ballast.
Body: Polycarbonate Strong and Robust
Mounting: Surface or Suspended
20mm compression gland.
Benefits of High Frequency Fittings. Flicker free and silent operation. Instant starting. Detects failed lamps, no more flashing on and off. Cold starting in sub-zero temperature. No stroboscopic effects. 20-30% saving in running costs.
Features of Tri-phosphor Lamps. Tri-phosphor lamps drop to 96% of their original output after about 4000 hours and remain at that level compared to standard lamps which drop to 86% and then down to 74% over the rest of their life. Survival rate of 70% of tri-phosphor tubes after 16,000 hours, compared to 10,000 hours for standard tubes. Approximately 15% increase in light output over standard tubes.