400W GES MBFU Mercury Lamp – Elliptical E40 Bulb High Output

Lamp Type: High-Pressure Mercury Vapour (MBFU) Wattage: 400 W Base Type: E40 (GES – Giant Edison Screw) Bulb Shape: Elliptical (Elliptical outer bulb with internal phosphor coating) Luminous Flux: Approx. 19,000–22,000 lm Colour Temperature: 3900–4200 K – Cool White Colour Rendering Index (CRI): Typically 40–50 (phosphor-coated for improved colour) Average Rated Life: Up to 16,000 hours Operating Voltage: ~130–135 V Lamp Current: ~3.25 A Warm-Up Time: 4–6 minutes to full brightness Re-ignition Time: 1–3 minutes after power interruption Operating Position: Universal UV Protection: Integrated outer envelope provides UV shielding Control Gear Requirement: Requires appropriate external ballast