Osram 11560 ECT 120V Photo-Optic PS25 Lamp - 500W E26 Frosted Bulb

Osram 11560 ECT — 500W 120V Photo-Optic Incandescent Photoflood Lamp, E26 Medium Base, PS25

The Osram 11560 ECT is a 500-watt, 120-volt tungsten incandescent photoflood lamp from Osram, designed for professional projection, studio, medical, fiber-optic, and entertainment optical equipment. With an E26 medium base, PS25/5 bulb shape, 13,650 lumens, 3200K color temperature, and a 60-hour rated life, this lamp is selected for specialized optical systems where correct lamp geometry, fit, and light output are critical. Sold in cases of 24. Verify ANSI code, wattage, voltage, base, and bulb shape against your existing lamp or equipment manual before ordering.

Technical Specifications

Product Overview

The Osram 11560 ECT is a tungsten incandescent photoflood lamp engineered for professional optical equipment where precise lamp geometry, consistent light output, and correct color temperature are essential to system performance. The PS25/5 bulb shape and E26 medium base fit the optical housing of projectors, studio fixtures, medical illuminators, fiber-optic illuminators, and similar specialty equipment designed around this lamp family.

At 3200K, the ECT delivers tungsten-balanced output suited for photographic, studio, and broadcast applications using tungsten-calibrated film or camera settings. The 60-hour rated life is standard for a high-output 500W photoflood operating at rated voltage — always confirm supply voltage matches 120V rated voltage to avoid accelerating lamp depreciation.

This is a tungsten incandescent lamp — not halogen. Correct lamp identification is critical in optical systems where substituting a different lamp type, bulb shape, or filament geometry will affect focus, beam quality, or equipment calibration. Always match the ANSI code ECT and ordering abbreviation to the existing lamp or equipment manual before ordering.

Compatible Applications

• Projectors and slide projection systems — Medium base photoflood for optical projectors requiring ECT-designated lamps.
• Microfilm and microfiche readers — Illumination source for document imaging and archival systems.
• Microscopes and laboratory illuminators — High-intensity incandescent source for laboratory optical instruments.
• Studio, theatre, TV, and video lighting — 3200K tungsten-balanced output for production lighting equipment.
• Medical and dental illumination — Where ECT-designated lamps are specified by equipment manufacturer.
• Fiber-optic illuminators and optical equipment — High-lumen incandescent source for fiber-optic coupling systems.

Before Ordering — Verify

• ANSI Code / Ordering Abbreviation: Confirm the existing lamp or equipment manual specifies ECT or ECT 120V.
• Voltage: Confirm equipment is rated for 120V. Operating above rated voltage shortens lamp life.
• Wattage: Confirm the fixture or instrument is rated for 500W.
• Base Type: Confirm the socket accepts an E26 Medium Screw base.
• Bulb Shape: Confirm the PS25/5 shape and physical dimensions fit within the equipment's lamp housing with adequate clearance.
• Lamp Type: This is a tungsten incandescent lamp — not halogen. Confirm your equipment specifies an incandescent ECT, not a halogen substitute.

Safety and Installation Guidelines

• Approved Fixtures Only: Install only in equipment designed for this lamp type, wattage, voltage, and base.
• Disconnect Power: Turn off and unplug equipment before replacing the lamp.
• Allow Cooling: Let the lamp and fixture cool completely before handling — this lamp operates at very high surface temperatures.
• Optical Alignment: Seat the lamp correctly to maintain proper focus, beam position, and equipment performance. Incorrect seating affects optical system calibration.
• Handle with Care: This lamp operates under internal pressure. Inspect for cracks or damage before installation. Do not use a damaged lamp.

Compliance

• Verify RoHS compliance status and Prop 65 requirements with the Osram manufacturer specification sheet prior to use in regulated installations.

Ordering Information

• Brand: Osram
• Osram Product Number: 11560
• ANSI Code: ECT
• Wattage / Voltage: 500W / 120V
• Base: E26 Medium Screw
• Bulb Shape: PS25/5
• Packaging: Sold in cases of 24.
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.