Studio lamps are available both in single-ended and double-ended design, typically in 230V and 240V. The colour temperatures of the lamps vary according to application: 3400K for professional photography, 3200K for film and studio, and 3000K for stage and theatre. The studio lamps not only meet stringent requirements in terms of luminous flux, luminous efficacy and colour temperature, but also tough economic and durable operating demands. They are compact, robust and can be used in many operating positions.