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How to Pick Recessed Lighting

2014-05-03 9:06:00 PM

How to Pick Recessed Lighting

There are two main components to recessed lighting: the housing and the trim. While picking the right trim is largely based on your personal taste, picking the right housing can be a little more technical (you might have to ask your electrician a few questions). Understanding the following is the key to getting the right recessed light:

Remodel or New Construction

In order to pick the correct housing, you will need to know whether to use a "Remodel" or "New Construction" style housing. Although these terms seem straightforward, they are somewhat of a misnomer. "New Construction" housings are appropriate when you have accessible space around where the light is going to be placed. "New Construction" housings are used when: A) You are building in a new space where you have full access to the wall/ceiling/floor without sheet rock or plaster hindering your access to beams, etc., or B) You have access to the space due to an overhead attic, a pop out ceiling panel, etc. The reason you need all this space? "New Construction" housings are bulkier and are installed in between joist beams or onto hanger bars from T-Bar or drop ceilings. Conversely, "Remodel" housings are less bulky and appropriate when you have limited or no access to the space above the new fixture. This is common in apartments or homes without crawl spaces or attics. Remember, even though "Remodel" housings are less bulky, it does not mean that you won’t have to remove sheetrock or make holes in your ceiling to accommodate your new lighting plan.

IC or Non-IC Rated

Understanding whether you need IC or Non-IC rated components is the other critical aspect to picking the right housing. An IC, or insulation contact, rating means that the fixture can come in direct contract with thermal insulation. Conversely, a Non-IC, or non insulation contact, rating means that the fixture can not come in direct contact with thermal insulation and should be kept at least 3 inches from any insulation.

Line or Low Voltage

The final "technical" component decision is to determine whether you want line or low voltage. Line voltage operates directly off of the normal household 120 volt current. No transformer or special dimmers are needed. Line voltage is recommended when you have high ceilings and/or the need to provide general illumination to a room, as you can use up to a 150W bulb. Low voltage is a more energy efficient alternative that uses a 12 volt current instead of a 120 volt current. A special transformer is needed to reduce the voltage and special dimmers are required if you want a dimming feature. Low voltage is recommended when you want to create high contrast and/or are using the recessed lights as a form of task or accent lighting.

Trim Size

The trim is the visible part of the light and hence should reflect your style and the application for which it is gong to be used. First you need to pick the size. Trims come in multiple sizes ranging from 3" to 6" in diameter. The size of the trim is a personal preference; however, larger sized trims are able to produce broader amounts of light. Obviously, smaller trims are less conspicuous and are hence often seen to be more modern and architecturally desirable. Again, while the trim size can be based on your aesthetic, some common applications include: 6" trims are still the mainstay for general residential downlight and wall wash illumination, due to their ability to accommodate a wide range of lamps, wattages, and efficient optics. 5" trims have become popular for task lighting and even general lighting in smaller scale settings. 4" line voltage trims are useful for task and accent lighting with short throw distances and/or lower light level requirements, such as over a bar or counter. 4" low voltage MR16 trims have become the choice for inconspicuous yet powerful precision accent lighting.

Trim Style

After you’ve decided on the size, it is then important to understand the style of trim you want. The appropriate style is largely based on the application and the desired effect you are going for:

  • Recessed Lighting: Baffle Trim

    Baffle Trim: Baffle trims are the most popular choice of all recessed lighting trims. They are the perfect choice for use in living spaces such as living rooms, dining rooms, dens, bedrooms, etc. These trims feature large uniform grooves which are designed to absorb excess light. Baffles help to reduce glare and are typically offered in two color choices, black or white. Black baffles reduce the most amount of glare from the bulb, while white baffles help to reduce or eliminate the appearance of dark holes in the ceiling.

  • Recessed Lighting: Reflector Trim

    Reflector Trim: Reflector trims are the preferred choice for use in kitchens, very high ceilings and commercial applications. Reflector trims use a highly polished smooth interior trim to maximize the amount of light produced from the bulb. These trims are available with multiple tints which can aid in either obscuring the bulb from view, or warming the room.

  • Recessed Lighting: Adjustable Trim

    Adjustable Trim: Adjustable trims are used in a variety of applications. They can be used in general lighting, task lighting, accent lighting and wall washing. These types of trims allow the bulb to "float" in the housing and give the user the ability to position the bulb to reach a desired area. A benefit to using adjustable trims is that the housing can be installed off center and the trim can compensate for the housings position and still accomplish the desired lighting technique.

  • Recessed Lighting: Lensed Trim

    Lensed Trim: Lensed trims are designed to protect the bulb and the interior of the housing from moisture or taking direct hits of water. They are the preferred choice for use in bathrooms, showers, eave lighting and in closets.

  • Recessed Lighting: Wall Washed Trim

    Wall Washed Trim: Wall Wash trims are combinations of a directional reflector and a light "scoop" direct light toward the wall. Most scoop wall washers utilize A-lamp or CFL lamps. Higher wattage commercial style scoop wall washers utilize R/BR Lamps. Scoop wall wash trims are generally spaced 20"- 30" from the wall and 20"- 30" apart.

  • Recessed Lighting: Decorative Trim

    Decorative Trim: Decorative trims have become very popular over the last few years. They combine the ability to provide a pleasing look on the ceiling while utilizing a powerful and efficient low voltage halogen bulb.

Note: Not all trim sizes and styles work with all housings. Therefore, it is important to understand the type of housing you need before falling in love with a certain trim. Similarly, some trims are suited or line voltage and some low voltage; therefore, make sure you understand all of your other constraints before picking your trim.

** Above information and documents are from, thanks for their helpful files.

Posted in Recessed Lighting By Tom

Recessed Lighting FAQ

2014-05-03 9:06:00 PM

Recessed Lighting FAQ

Q: What is recessed lighting?

A: Recessed lighting refers to fixtures that are set into ceilings or walls. Commonly called cans because of their shape, they include the housing (the internal part in the ceiling that you don't see) and the trim, which is visible. With little or no profile, recessed lighting provides effective ambient and accent illumination for both residential and commercial use.

Q: Which type of housing should I use: Remodel or New Construction?

A: There are two types of housings, New Construction and Remodel. Determining which type to use will depend on your application. If you have access to your ceiling from above, you will want to use a New Construction housing. If you do not have access, you will want to use a Remodel housing.

Q: What is the difference between IC vs. Non-IC rated housings?

A: IC rated housings allow insulation (either laid in or blown in) to be installed on or around the housing. Non-IC housings require that insulation be kept at least 3" away from the housing at all times.

Q: How many lights am I going to need?

A: This question has no easy answer, as opinions on this subject vary greatly. However, a good rule of thumb is to take the height of the ceiling and divide it in half. This is the distance that each light should be from one another. For example, a room with an 8' ceiling, should have lights approximately 4' from one another (8' ceiling / 2 = 4' apart). The total number of lights will also be affected by the type and wattage of bulb being used. Spot lights with narrow beams will produce pockets or pools of light, while flood type bulbs will produce broader amounts of light.

Q: Can I use a dimmer?

A: Yes, a dimmer can be used on most recessed lighting. Line Voltage recessed lighting can be dimmed with a standard incandescent dimmer. While Low Voltage recessed lighting will be dimmed with either a Low Voltage Electronic or Magnetic dimmer. The type of transformer (Electronic or Magnetic) used in the housing will determine which type of dimmer you need.

Q: What is meant by Air-Tight down light and why would I want to use one?

A: Any air-tight rated down light has demonstrated in an independent testing laboratory environment that it will prevent air flow through the fixture. This is important because it saves money in heating and cooling costs. Just as important, some state regulations are now requiring that new home construction use this type of down light.

Q: Can I use a CFL or LED bulb in a Line Voltage Housing and Trim?

A: Yes, CFL and LED bulbs can be used in Line Voltage Housings and Trims. These types of bulbs are readily available in Par, R and A shaped bulbs. It's important to note, that the shape of the bulb should be as close to the bulb specified by the manufacture as possible. For example, if the housing and trim are recommending a Par/R shaped bulb, the CFL or LED bulb should be in a Par/R shape. Spiral CFL bulbs can be used as they have the same socket base as a Par/R bulb, however due to the length and width of some bulbs, the light pattern given off by the bulb and the overall look, may not be what was originally intended.

Q: Can recessed lights be installed in a bathroom?

A: Yes, recessed lighting trims and housings are suitable for damp locations (porch or bathroom) using any trim. Wet locations, above a shower or outdoors, require the use of specific wet location trims.

Q: Why Consider Die Cast Trims over Stamped Trims?

A: Aluminum die cast trims provide stronger construction, more precise shapes and superior heat dissipation properties than corresponding stamped metal options. Die cast trims are stronger due to their single piece construction versus a stamped trim that is made up of multiple pieces of metal that are fastened or welded together. The die cast process produces trims with tighter tolerances than stamping, thus resulting in greater precision of shapes with smoother edges. Stamped trims are similar in appearance to die-cast trims as they utilise the same powder coat finish. In summary, die cast trims look similar in appearance the corresponding stamped trim, but die cast trims are superior quality.

** Above useful information is from Thanks for it!

Posted in Recessed Lighting By Tom
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