###Now the bad news: PAR38
refer to the physical characteristics of the bulbs
. PAR = Parabolic Aluminized Reflector, 38 = thirty-eight eighths of an inch, or 38*1/8"=4.75". 30 = thirty eighths of an inch, or 30*1/8"=3.75". As you can see, PAR38
has a larger diameter than a PAR30 bulb
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Quite so, what is a par 40 bulb?
What does PAR20 mean? PAR20 is a small reflector lamp with focused light. Some like to call them spot lights but this may be a bit misleading. Like its larger siblings PAR30 and PAR38, it can come in a variety of beam angles from narrow spot to wide flood.
Whatever the case, what does par30 bulb mean? Parabolic aluminized reflector
Besides, are br30 and par30 the same?
The number following the letters in a recessed light bulb indicates size: it's the diameter of the light bulb in eighths of an inch. So, a BR30 is 30/8 inches, or three and 3/4 inches. An MR11 is 11/8 inches. So, you can swap out a PAR30 for an R30 or a BR30 - they are all the same size.
What is the difference between par and BR bulbs?
PAR stands for “parabolic aluminized reflector” and is best used in settings that require a focused, narrow beam of light. Most PARs do not exceed a beam angle of 45 degrees in most cases. BR stands for “bulged reflector” and is considered a wide-angle floodlight often exceeding 100-degree beam angles.
16 Related Questions Answered
The Shapes: BR30 and BR40 Or more simply, the BR30 is just under 4" across and the BR40 is 5" across. So when you're choosing a bulb for recessed cans, the first thing to know is the size of the cans. For general lighting, most cans are 4" or 5" or 6".
What are R/BR40 Bulbs? Reflector (R) or Bulged Reflector (BR) 40 bulbs have a reflective coating on the inside of the bulb that directs light forward. Flood types (FL) are flood light bulb types that spread light. ... R/BR40 LED Replacements: R/BR40 is one of the best applications for LED due to its directional nature.
R20 bulbs have reflectors that direct light forward and produce more narrow soft-edged beam that is less precise than PAR20 bulbs. R20 bulbs also produce less shadow than PAR20 bulbs. PAR20 bulbs control light more precisely and produce more concentrated light than R20.
You can swap these bulb types to change from wide to spot, depending on what you need in each location. BR and PAR LED replacements for your traditional flood or spotlight bulbs not only create a different style light beam from each other, the bulbs also look different.
The difference is simply the diameter of the bulb. R30 bulbs are the larger of the two bulbs. BR30 bulbs are actually the newer, more energy-efficient version of R20 bulbs and are the same size as R20s. R30 bulbs have a diameter of 3.75 inches, while BR30 bulbs have a diameter of 3.5 inches.
1 Answer. First the good news: Electrically it would be fine as long as the PAR38 bulb's wattage does not exceed the receptacle's maximum wattage. As you can see, PAR38 has a larger diameter than a PAR30 bulb or can.
Type. The four light bulb types used in residential recessed lighting are incandescent, halogen, compact fluorescent (CFL), and light emitting diode (LED). Incandescent aka traditional light bulbs are the oldest and least efficient technology.
A recessed fixture with a medium screw base lamp holder can take an incandescent, fluorescent, halogen or LED light bulb. ... If you want to be able to dim your recessed lights, or control them with a remote or automated system, choose fixtures you can use incandescent, halogen or LED light bulbs in.
Parabolic aluminized reflector (PAR) 38 bulbs control light more precisely. LED PAR lights produce about four times the concentrated light intensity of general service A shape incandescents, and are used in recessed and track lighting.
Reflector shaped light bulbs are lined with a reflective surface to create a wide beam angle. Reflector bulbs are available as halogen and LEDs, with E14, E27, B15, B22, and G53 bases. Reflectors are often used in stage and recessed lighting, as well as security and kitchen lights.
Nowadays, R type bulbs have an evenly frosted coating that works to diffuse light and prevents glare. ... Unlike the PAR bulb, the entire bulb envelope of R type excluding the base is constructed using blown glass. Also, the exterior part of the bulb is very smooth.
It stands for the diameter of the bulb in 1/8 inches. So the 30 means the diameter is 30/8 inch or 3 3/4 inches. The R is an older designation for "reflector" meaning the type of recessed light bulb. ... So this long answer is to say that a BR30 bulb is a replacement for the older R30 bulb.
Bulb sizing is very straightforward and simple, it is based on the diameter of the bulb at its widest point, measured in eighths of an inch (⅛”). For example, the designation “T12” indicates a tubular bulb that is 12 eighths of an inch (12/8”) in diameter (or 1 ½”).
How to Buy the Right Light BulbCheck your bulb base size and bulb shape. ... Determine much light you need. ... Select the right color of white for your light bulb. ... Find out if you need to dim your light. ... Find out if your light bulb will be used in an enclosed fixture or recessed can. ... Choose the right type of light bulb.
The light bulb size is determined by the maximum overall diameter (MOD) of the bulb's shell. It is represented in eighths of an inch (1/8"). It's also important to keep in mind the bulb's length (or height) that is defined as the maximum overall length (MOL) expressed in inches.