current position:Home>FAQ
FAQ2023-01-06T02:22:42+00:00

The light sky is a professional stage lighting manufacturer; you can keep in touch with us via customer service phone, email, or live chat; below is a list of frequently asked questions about outdoor stage lights and other lights.

How to extend life of lights?2023-01-05T04:08:48+00:00

1. Suggestion about turning ON/OFF

Don’t turn it off within 5mins after on, the bulb will be easy to blacken due to not reaching the thermal balance. Finally loses transparency and shortens its lifespan.

When you turn it on, some fixtures might have a signal delay or mistake because of suffering outer high-frequency interference. Please reset the whole fixture and turn it on again if the bulb can not light up for over 2mins.

It would be better to set the bulb off while the fixture head (Y-axis) is on the horizon state (it’s the best balance state for heat dissipation), bulb explosion rate will increase if it is in heat imbalance frequently.

Don’t switch the fixture frequently, it’s easy to cool the mercury in the bulb into large particles and cause a short circuit, especially for new bulbs. At this time, you need to remove the bulb and tap it to make the mercury stick to the inner wall of the bulb. Then light it again after the short circuit is removed.

2. Suggestion about standby mode

The lighted bulb should not be in a static state for a long time, XY axis should be shaken slowly at a large angle as much as possible to make the heat dissipation more balanced. Or lowly shaken 10 minutes before the bulb off after the event (the XY axis moves from 0 to 255 at the same time) to release the stress.

Don’t forget to cut off the power when turning off the fixture with a console.

What is color temperature?2023-01-05T04:06:29+00:00

Color temperature is the color of light emitted by an idealized opaque, non-reflective body at a particular temperature measured in kelvins. The color temperature scale is used to categorize the color of light emitted by other light sources regardless of their temperature.

Color temperatures over 5000 K are called “cool colors” (bluish), while lower color temperatures (2700–3000 K) are called “warm colors” (yellowish). “Warm” in this context is an analogy to a radiated heat flux of traditional incandescent lighting rather than temperature. The spectral peak of warm-colored light is closer to infrared, and most natural warm-colored light sources emit significant infrared radiation. The fact that “warm” lighting in this sense actually has a “cooler” color temperature often leads to confusion.

What is CMY in lighting?2023-01-05T04:05:27+00:00

Subtractive color mixing uses a white light source with a series of filters to eliminate certain wavelengths of light. Typically, these systems are known as CMY (Cyan, Magenta, Yellow) color mixing and consist of dichroic filters.

How many channels is Art-Net?2023-01-05T04:04:13+00:00

The protocol can address 32768 DMX “universes”, each of 512 channels, limited by bandwidth. The fixed addressing can be problematic in networks with other addressing requirements.

 

What is Art-Net DMX?2023-01-05T04:03:09+00:00

Art-Net is a communication lighting protocol for transmitting DMX and RDM signals over Ethernet. With 2 universes of bi-directional eDMX to DMX conversion with ArtRDM support, power over ethernet (PoE), or flexible 12-24v DC input, the DIN Ethergate allows for fast deployment of DMX systems.

What is the difference between light and illumination?2023-01-05T04:01:20+00:00

Illuminance is the transmission of natural light (windows, lighting plates… ).  Lighting is the distribution of artificial light (Lamp, floor lamp, neon…)

How is illumination measured?2023-01-05T03:59:05+00:00

This can be measured in candelas/square meters (cds/m2) or foot-lamberts (fLs). Illuminance, on the other hand, describes the measurement of the amount of light illuminating the surface area and is measured in lux or foot candles and correlates with how humans perceive the brightness of illuminated areas.

How many type of transport package of stage lighting?2023-01-05T03:57:30+00:00

Usually, 3 types of packages for stage lighting transportation, are cartons, plywood, and road case (fly cases).

The cost is road case>plywood>carton. Carton is the basic package and free, least weight and smallest size to save shipping freight, suitable for selling the business, fixed install permanent lights or having own local cases supplier. If the lights are very heavy and the carton can not provide enough protection, we will choose plywood. Road case is suitable for hire business, easy to push on the ground, and can be used repeatedly.

How many type of lighting source is available in stage lighting field?2023-01-05T03:32:00+00:00
  1. LED Chip 2. Discharge lamp  3. LED module   4. Laser module

How to hang the stage lighting to the truss?2023-01-05T03:29:24+00:00

Please click the video link for details.

What is CTO in lighting?2023-01-05T03:05:16+00:00

Optical Filters Color Temperature Orange (CTO) and Color Temperature Blue (CTB) Optical filters are a great tool for a wide variety of lighting applications. One common use of optical filters includes changing the correlated color temperature of a light source.

What is light,luminous flux, illumination?2023-01-05T03:25:35+00:00

Light is a form of energy, which is radiated by heated bodies. The light is the part of the radiant energy which produces a sensation (of light) in the human eye.

Luminous flux is the light energy radiated per second from a luminous body in the form of light waves. It is measured in lumen.

The luminous flux falling per unit area on a surface is known as illumination and is expressed in Lumen/m2.