Light sails
The light sail , which is often also referred to as a sail lamp , is a ceiling lamp that combines direct (downward) and indirect (towards the ceiling) light by means of a cloth. It is mainly used when the light source is to be used as a design element in a room.
use
Basically, a sail lamp can be used in any private room. The lighting is designed in such a way that it is perceived as soft light and thus creates a pleasant atmosphere. In practice, the light sail is mainly used in rooms such as living room, kitchen, children's room or bedroom.
In commercial spaces, sail lights are mostly used on occasions where people spend a long period of time. Due to the combination with direct and indirect light, the luminaire hardly casts any shadows, creates no reflection and does not dazzle. Thus, it ensures pleasant, even illumination of the room, for example in restaurants, offices, meeting rooms, doctor's offices, therapy and massage rooms and waiting rooms.
construction
Like all ceiling lights, this also consists of a cover and a base plate. The cover is attached to the ceiling by means of springs and spacers and, as with conventional lamps, can be removed to change the light source .
cover
The cover is made of fabric or plastic. Mostly canvas is used for this , which is characterized by a high degree of durability. Basically, the cloth is made of a B1 permanently flame- retardant material. Since the canvas is in close proximity to the lamp, enormous heat can arise here. Choosing a heat-resistant material means that the substance cannot ignite even if the lamp is used for a long time. While sail lights with fabric covers are almost exclusively mounted on the ceiling, light sails with plastic covers can also be mounted on the wall.
Manufacturers like to use sailcloth because it is particularly easy to care for. It can be washed in the washing machine at 30 ° C and ironed at a medium temperature when it is damp. The fabric colors are white, cream or yellow as well as colorful motifs that are printed using a special screen printing process.
Base plate
Base plate with ballasts
The base plate with ballasts is available in different versions for operation with fluorescent tubes or compact fluorescent lamps :
- low-loss ballast with starter (VVG)
- electronic ballast (EVG)
- electronic multiwatt -Vorschaltgerät for T5 fluorescent lamps
- Dimmable electronic ballast for T8 and T5 fluorescent lamps
The EVG is a more modern variant with various advantages. For example, the light source is ignited more quickly and also emits completely flicker-free. Another aspect is the power saving of up to 20 percent compared to the low-loss ballast. If the electronic ballast is used in combination with T5 fluorescent tubes, their service life increases to up to 16,000 operating hours thanks to lamp-friendly operation. T5 sail lights are equipped with multiwatt ballasts which have the advantage that fluorescent lamps of different power such as B. can be operated with 14 W or 24 W. The lamp is automatically recognized when it is switched on.
The dimmable variant of the ECG is divided into 2 variants:
- analog dimmable electronic ballast (1–10 V)
- digitally dimmable ECG DALI (with touch DIM interface)
The analog dimmable ballast is operated by means of a potentiometer and a rotary switch, whereby digital touch DIM devices can be set to the desired brightness level using a button. With the dimmable variant, it should be noted that an additional installation wire or 5-pole cable is required for dimming. If this is not possible, the sail lamp can also be controlled with a remote dimmer installed in the flush-mounted box.
Base plate in LED
The base plate with LED equipment is available in different versions:
- Light sails with dimmable E27 LED lamps: The LED lamps can be dimmed using a phase control or a universal dimmer. The lamps are screwed into the E27 lamp base and can be exchanged.
- Light sails with LED base plate: LED sails are equipped with a specially designed frame for uniform illumination. The luminaire is dimmed using a remote control or a DALI output. With DALI, dimming is done using a push button.
- Light sails with LED RGB base plate with color change: RGB sail lights are also equipped with a color changer, through which different light colors and color sequences are possible. Not only is colored light generated, but warm white light can also be set. The lamp is dimmed and controlled either via a remote control, a DALI or DMX output.
- Light sail with Tunable White LED base plate. The new Tunable White sail light offers the possibility to adjust the white light dynamically from 2500K (warm white) to 6500K (cold white). Since the human body is adapted to the light rhythm of the sun, it reacts to blue light with greater activity, while warm, red light of lower intensity tends to herald the rest phases. Light colors have a positive effect on the biorhythm ! People who spend many hours a day under artificial lighting benefit from dynamically adjustable light. The light color of this sail lamp can be dimmed and controlled by remote control, so that the light intensity can also be continuously adjusted.
Bulbs
The sail lamp can be operated either with fluorescent lamps or LEDs:
- Fluorescent tubes (T8, T5, 2GX13)
- Compact fluorescent lamps (2G11)
- LED lamps (E27)
- LED boards
- LED strips in one or more colors with color gradient (RGB) or tunable white with white light mixing
See also
Web links
Individual evidence
- ↑ direct - indirect lighting . In: Details Lichtlexikon. Retrieved June 18, 2015.
- ↑ Dimmable electronic ballasts . Retrieved on June 18, 2015 (overview of dimmable ECGs).
- ↑ Electronic ballasts save energy . Lighting technology EVG control gear. Retrieved June 18, 2015.
- ↑ ECG for fluorescent and compact fluorescent lamps - OSRAM. In: osram.at. July 12, 2013, accessed June 18, 2015 (advantages of electronic ballasts).
- ↑ Information on sail lights. Overview of the LED sail lights HTML