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BBA

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3400k eca norms

BBA is the ANSI lamp code for a 250-W photoflood lamp with 3400 K color temperature, A21 bulb, and E26 base.

Overview

"BBA" is not a manufacturer or a device type, but an ANSI lamp code – a standardized three-letter identifier that uniquely describes a specific light source across manufacturers. Behind the code BBA stands a classic photoflood lamp: an incandescent lamp with a tungsten filament, intended as a continuous light source for photo, film, and video lighting. The same lamp is offered by several manufacturers under the identical code, including Ushio, OSRAM/Sylvania, Eiko/Wiko, and GE.

Characteristic of photoflood lamps like the BBA is the filament operated under overload: the filament operates at a significantly higher temperature than in a normal household lamp. This provides high luminous efficacy and a defined, warm color temperature – but at the cost of a very short lifespan.

Technical Data

FeatureValue
ANSI CodeBBA
Wattage250 W
Voltageapprox. 118–120 V
Color Temperature3400 K (Tungsten, warm white)
BaseE26 Medium (Screw base)
Bulb ShapeA21 (A-shape)
Finishfrosted

The values are consistent across the data sheets of several manufacturers (Ushio, OSRAM/Sylvania, Eiko, GE). According to manufacturer specifications, the luminous flux is in the range of approximately 8500–8700 lumens; the exact figure varies by manufacturer, which is why it should be understood as an approximation. The lifespan is very short – photoflood lamps rarely last more than a few hours, which directly follows from the overloaded operation of the filament.

Note: A variant for 240-V mains (approx. 275 W, B22d bayonet base) also exists under the same BBA code; however, the version common and standard in English-speaking regions is the 250-W lamp with an E26 base.

Use on Set

At 3400 K, the BBA falls within the classic tungsten range (though slightly higher than the studio standard of 3200 K) and can therefore be mixed with other artificial light sources. 3400 K photofloods were historically common as set lighting, but on professional sets today, they have largely been replaced by fresnels, HMIs, and LEDs.

A relevant niche remains their use as practicals: when a light source visible in the shot – such as a table or floor lamp – needs to be significantly illuminated even under the surrounding set lighting, a photoflood lamp like the BBA provides the necessary visible glow thanks to its high output, where a normal household bulb would be washed out in the image.

  • Caution: Heat: Like all high-load incandescent lamps, the BBA gets very hot – use gloves when handling and ensure sufficient distance from diffusion materials and flammable objects.
  • Plan for short lifespan: Due to the low lifespan, spare lamps should be included in expendables.
  • Check base/voltage: Before installing, ensure that the socket (E26) and mains voltage match the specific BBA version.
From the crafts

Perspectives

Cinematographer

Aus DoP-Perspektive ist dieses Element essentiell für die visuelle Gestaltung. Es ermöglicht mir die gewünschte Farbstimmung und das ästhetische Bild konsistent umzusetzen.

Producer

Diese professionelle Lösung erhöht die Produktionseffizienz und reduziert Post-Production-Anforderungen. Sie ermöglicht flexible, schnelle Anpassungen während des Drehs.

Gaffer

Als Gaffer ist dies ein unverzichtbares Werkzeug meines täglichen Handwerkszeugs. Es ermöglicht mir professionelle Lichtkontrolle und schnelle Anpassungen auf Set, was Zeit spart und Qualität sichert.

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1. Zu welchem Department gehört „BBA (250W 3400K)"?

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