Lighting fixtures have a major impact on a room’s atmosphere, brightness, and energy efficiency. With so many options available, many people are unsure which type to choose. In this article, we clearly explain types of lighting, differences between light sources, selection criteria, and installation steps.
What types of lighting are available?
Direct lighting (to brighten the whole room)
- Pendant light：A light suspended from the ceiling. It creates distinct shadows and offers strong decorative appeal. Because its illumination range is narrow, it is commonly used together with supplemental lighting.
- Ceiling light：Mounted directly to the ceiling. It does not create a cramped feeling and provides even illumination across the room. Models with dimming and color temperature adjustment are now the standard.
- Downlight：A recessed ceiling light. It gives a cleaner look with no sense of visual heaviness. However, note that some models require the entire fixture to be replaced when changing the bulb.
- Chandelier：A lighting fixture with a strong decorative focus. Materials also vary widely, including brass, iron, and crystal.
- Track rail：A wiring fixture that allows multiple lighting fixtures to be attached to a rail. It also makes it easier to install fixtures that might otherwise be difficult to mount, giving greater flexibility in interior design.
Indirect lighting (for ambiance and support)
- Spotlight：Used to illuminate a specific area. It is often directed toward artwork, products, or desks. It also pairs well with track rails.
- Footlight：Lighting for the floor area. It is effective for preventing falls in hallways and on stairs. Models with motion sensors or built-in rechargeable batteries are also available.
- Bracket light：A wall-mounted fixture. It saves more space than a floor lamp and works well as supplemental lighting.
- Stand light：A freestanding light placed on the floor or a table. It is easy to move and well suited to creating an internationally inspired interior style.
- Exterior light：Designed for outdoor use. With waterproof functionality, it can be installed at an entrance or in a garden.
How do light source types differ in their features?
- Incandescent lamp：It turns on quickly and is inexpensive, but it has a short lifespan of about 1,000 hours and high power consumption. Its use is now declining.
- Fluorescent lamp：It offers a long lifespan (6,000 to 25,000 hours) and good lamp efficiency. Its drawbacks include the use of mercury and flickering.
- HID lamp：It provides high brightness and is suitable for large spaces. It takes several minutes to stabilize after being switched on.
- LED：With a lifespan of about 40,000 hours, it is energy efficient and easy to dim or adjust in color temperature. The initial cost is somewhat higher, but the total cost is the lowest.
- OLED：It offers surface-emitting light, light weight, and flexibility. The cost is high, but wider adoption is expected in the future.
What should you pay attention to when choosing lighting?
An important indicator when choosing lighting fixtures is lm/W (lumens per watt). This shows how much brightness (lumens) can be produced with one watt of power consumption. The higher the figure, the brighter and more energy-efficient the lighting is. For example, 150lm/W is nearly twice as bright as 80lm/W at the same power consumption.
How should lighting fixtures be installed?
The procedure for replacing a ceiling light is as follows.
- Check the ceiling wiring fixture (for example, a hook ceiling connector or a ceiling rose)
- Check the weight of the ceiling light (load capacity: 5 kg for a ceiling connector, 10 kg for a ceiling rose)
- Check the shape of the ceiling (installation may not be possible on lattice ceilings or sloped ceilings)
- Turn off the power
- Remove the existing lighting fixture and store it (because it belongs to the landlord, do not dispose of it)
- Install the adapter by inserting it fully into the connector
- Confirm that the light turns on
If the wiring comes directly from the ceiling (a direct-wired type), a licensed electrician is required. Because carrying out this work without qualifications is illegal, please ask a qualified contractor to handle it.
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Frequently Asked Questions (FAQ)
- Q. Can lighting fixtures be replaced even in a rental property?
- A. If there is a wiring fixture such as a hook ceiling connector, you can replace it yourself. Keep the original fixture you removed and restore it when moving out.
- Q. How much can electricity costs be reduced by switching to LED?
- A. When replacing incandescent bulbs, power consumption drops to about 1/8 to 1/10, so a substantial reduction in electricity costs can be expected.
- Q. Which lighting fixtures support dimming?
- A. Many ceiling lights and downlights come with dimming functions, allowing brightness to be adjusted using a smartphone or dedicated remote control. More LED lighting products in general are now compatible with this feature.
- Q. Is there a guideline for the number of lumens needed based on room size?
- A. A general guideline is 400 to 500 lm per tatami mat. For an 8-tatami room, lighting of about 3,200 to 4,000 lm is appropriate.
