Philips 70833243 - Episcopic lamp 1000 W 230 V E40 mirrored (new ref. 77833228)

Philips 70833243 - Episcopic lamp 1000 W 230 V E40 mirrored (new ref. 77833228)

The Philips 70833243 is a high-performance episcopic lamp for theater projectors and laboratory applications. Its E40 base and mirrored side finish optimize beam collection and direction, offering high luminous flux with dimmer control and tungsten-like color rendering ( approximately 3200 K ). With a 125 mm diameter bulb , a total length of 193 mm , and an LCL of 125 mm , it integrates easily into fixtures with Fresnel or PC optics that require a compact, intense, and controlled light source. It is a common solution in stage projectors that demand fast start-up, reliable thermal management, and easy replacement.

Main features

• Power: 1000 W
• Nominal voltage: 230 V
• Socket: E40 (mogul thread)
• Finish: Side mirrored
• Color Temperature (CCT): ~3200K (Tungsten)
• Luminous flux (nominal): 23,000 lm
• Average lifespan: 40 hours
• Regulation: Yes (dimmable)
• Dimensions: Bulb diameter 125 mm; total length 193 mm; LCL 125 mm
• Operating position: Universal
• New manufacturer's reference: 77833228

Product benefits

• Powerful and controlled beam: the mirrored side coating focuses the light towards the projector optics, increasing the useful illuminance.
• Stage stable color: tungsten tone (~3200 K) suitable for theater and camera, with smooth dimming via dimmer.
• Simple integration: E40 socket and standard geometry (Ø 125 mm, LCL 125 mm) compatible with dedicated projectors.
• Predictable maintenance: average lifespan of 40 hours according to high-performance projection lamps.

Use cases

• Theater and concert halls: episcopic projectors with Fresnel or plano-convex (PC) lenses for intense highlights and accents.
• Laboratory and optics: projection and testing equipment that requires a concentrated and adjustable light source.

Frequently Asked Questions

• Is it halogen or discharge? It's a tungsten-type projection lamp with an E40 socket; it's dimmable by a conventional dimmer.
• What does "mirrored" mean? It has a reflective side coating that redirects the light flow towards the optics, improving the projector's efficiency.
• Can it be used in any orientation? Yes, its operating position is universal within the thermal limits of the equipment.

Usage and safety recommendations

• Check dimensional compatibility (Ø 125 mm, LCL 125 mm, length 193 mm) with your projector's original lamp.
• Handle with gloves and avoid fingerprints on the bulb; ensure adequate ventilation of the light fixture.
• Always follow the projector manufacturer's instructions regarding power, temperature, and dimming settings.

Project description

Philips episcopic lamp 70833243 ( new ref. 77833228 ), E40 , 1000 W , 230 V , ~3200 K , 23,000 lm , 40 h life , dimmable , side mirror finish ; dimensions: Ø 125 mm , LCL 125 mm , length 193 mm ; universal operating position.