FAQs
What are the available types of light bulbs?
Answer

Incandescent

These are the standard bulbs that most people are familiar with. Incandescent bulbs work by using electricity to heat a tungsten filament in the bulb until it glows.

 

Halogen

Halogen bulbs are a variation of incandescent bulb technology. These bulbs work by passing electricity through a tungsten filament, which is enclosed in a tube containing halogen gas. This halogen gas causes a chemical reaction to take place which removes the tungsten from the wall of the glass and deposits it back onto the filament.

 

Fluorescent

These bulbs work by passing a current through a tube filled with argon gas and mercury. This produces ultraviolet radiation that bombards the phosphorous coating causing it to emit light. Bulb life is long: 10,000 to 20,000 hours.

 

Compact Fluorescent Lamps

Compact Fluorescent Lamps (CFLs) are a modern type of light bulbs that work like fluorescent bulbs, but in a much smaller package. Similar to regular fluorescent bulbs, they produce little heat and are very efficient.

 

High-Intensity Discharge Lamps

High Pressure Sodium (HPS), Metal Halide, Mercury Vapor and Self-Ballasted Mercury Lamps are all high intensity discharge lamps (HID).Compared to fluorescent and incandescent lamps, HID lamps produce a large quantity of light from a relatively small bulb.

 

Low-Pressure Sodium Lamps

Low-pressure sodium lamps have the highest efficacy of all commercially available lighting sources. Even though they emit a yellow light, a low-pressure sodium lamp shouldn't be confused with a standard high-pressure sodium lamp. Low-pressure sodium lamps operate much like a fluorescent lamp and require a ballast.

 

LED (Light Emitting Diodes)

LEDs are the newest technology in the lighting field.

Light Emitting Diodes (LED) are bulbs without a filament, that are low in power consumption and have a long life span. LEDs are just starting to rival conventional lighting...

 

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How do I determine the correct amount of wattage to properly illuminate my room?
Answer
To find the proper amount of ambient light for the room, multiply the room dimensions to get your total area. Then multiply the area by 1.5 for total illumination needed. For example, a 4m x 5m room would need two 150-watt table or floor lamps to get ample light. An 8 light chandelier with 40-watt bulbs would also be suitable.
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How do I determine the height of the lamp I need?
Answer
A general rule for portable lamps states that the bottom of the lampshade for either a floor or table lamp should be 1m from the surface.
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What are the standards when it comes to desk lamps?
Answer
Above and beyond style, portable lamps should be utilized in rooms where additional task lighting is needed. For example, light sources on desks should be approximately 40cm above the work surface and 30cm from the desk front.
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Do compact fluorescents work in any light?
Answer
Unfortunately no, compact fluorescents cannot be used in lights with motion sensor or lights that are attached to a dimmer switch. However, use compact fluorescents when possible because they have a longer life and put out 4 times the light of incandescent bulbs.
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What are the rules for hanging a chandelier?
Answer

In general, the height of the main source of light should be about 75cm to 100cm above the table. There should be a minimum of 150 watts total in the chandelier. You should also consider the room size when choosing your chandelier .

Using a dimmer on your chandelier will allow you change the ambient light based upon your dining situation.
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What are the guidelines for bathroom lighting?
Answer
Three sources of light are recommended for the bath/dressing area. The dressing area needs eye-level lighting, at least 75cm apart with a minimum of 60 watts. Chain hung lighting is a good example. Do not direct the light onto the surface of the mirror. Overhead lighting should be a minimum of 75 watts per partitioned area of the bath, including the shower. A night-light is very helpful in this room for added safety.
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Can I turn my lighting fixture into a motion sensor fixture?
Answer
Yes, you can purchase a motion sensor adaptor that will convert your standard base light into a motion sensor light.
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Are LEDs ready for general lighting?
Answer
The number of white-light LED products available on the market continues to grow, including a wide range of replacement lamps, as well as integrated light fixtures, such as portable desk/task lights, under-cabinet lights, recessed downlights, track heads, and outdoor fixtures for street and area lighting. Some of these products perform very well, but the quality and energy efficiency of LED products varies widely.
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Are LEDs energy-efficient?
Answer
The best white LED products meet or exceed the efficiency of fluorescent and high-intensity discharge (HID) light sources. However, many LED products currently avail­able in consumer market channels are only marginally more efficient than incandescent lamps, and many suffer from very low light output relative to incandescent lamps and CFLs.
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How long do LEDs last?
Answer
Unlike other light sources, LEDs usually don't suddenly "burn out;" instead, they gradually fade in brightness over time. LED useful life is generally based on the number of operating hours until the LED is emitting 70% of its initial light output. Good quality white LEDs in well-designed fixtures are expected to have a rated useful life on the order of 30,000 to 50,000 hours.
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Do LEDs provide high quality lighting?
Answer
Color appearance and color rendering are important aspects of lighting quality. Until recently, most white LEDs had very high CCTs, often above 5000 Kelvin. High CCT light sources appear "cool" or bluish-white. While very high CCT (coordinated color temperature) LEDs are still common, products with neutral and warm-white LEDs are now readily available. They are less efficient than cool white LEDs, but have improved significantly, and the efficacy gap between cool and warm LEDs is narrowing.
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Are LEDs cost-effective?
Answer

Costs of LED lighting products vary widely. Good quality LED products currently carry a significant cost premium compared to standard lighting technologies. It is important to compare total lamp replacement, electric­ity, and maintenance costs over the expected life of the LED product.

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Why is LED lighting a good alternative to conventional halogen or xenon lamps?
Answer
LED lamps are safer because they generate very little heat and when operating, are cool to the touch. LED lamps do not contain any mercury.
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How efficient is LED lighting?
Answer

LEDs consume 90% less energy than conventional 12 volt lighting or 100% less when used with solar controller.

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Do LEDs operate in the winter and snow?
Answer

Yes, but due to the minimal heat dissipated by the LEDs, ground-mounted flood fixtures may become covered in snow and may need to be cleared occasionally.

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How cost effective are Solar Controller systems?
Answer
Because they are solar powered, they consume no energy and therefore operating costs are zero.
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Do they operate in the winter and snow?
Answer
Yes, but due to the lower sun angle, shorter days, and potential extended cloudiness in the winter months, performance can be diminished.
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How long will the battery last?
Answer
The battery in the Solar Controller will typically last 3-4 years in regions that experience extreme heat, and 5-6 years in other regions.
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What is IP rating?
Answer
IP rating stands for "International protection". This is a standard rating that determines how waterproof and dust/solid object proof a light fitting is. The first digit in an IP rating refers to how dust proof a fitting is and the second digit refers to how waterproof a fitting is. With the 2 numbers combined this will determine the likelihood of any foreign objects getting into the light fitting and possibly damaging it.
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Is an IP 40 or IP 44 fixture suitable for outdoors?
Answer
Generally speaking, high-end outdoor lighting will be IP rated 65, 67 or 68, however a rating of 44 will be suitable for general outdoor use though preferably not exposed directly to heavy rain.
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What are the various levels of IP rating?
Answer

IP ratings definition:

First Number

Meaning

Second Number

Meaning

Refers to protection against solids

 

Refers to protection against liquids

 

0

No protection

0

No protection

1

Protected against solid objects over 50mm (e.g. accidental touch by the hand)

1

Protected against water falling vertically

2

Protected against solid objects over 12mm (e.g. accidental touch by the finger)

2

Protected against direct sprays from up to 15 degrees from vertical

3

Protected against solid objects over 2.5mm (e.g tools, wires)

3

Protected against direct sprays up to 60 degrees from vertical

4

Protected against solid objects over 1mm (e.g. small wires)

4

Protected against sprays from all directions. Limited ingress permitted.

5

Protected against dust - limited ingress (no harmful deposit)

5

Protected against low pressure jets of water from all directions. Limited ingress permitted.

6

Totally protected against all dust

6

Protected against strong jets of water. Limited ingress permitted. E.g. acceptable for use on shipdecks.

 

 

7

Protected against temporary affects of immersion between 15cm and 1m, for 30 minutes.

 

 

8

Protected against long periods of immersion under pressure.


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