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The PAR stands for Parabolic Aluminized Reflector.
The number 20 indicates the number of 1/8 inch increments of size.
Therefore the diameter of the large end of the bulb is 2-1/2 inches.
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∙ 11y ago
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What is the definition of PAR in a PAR 20 or PAR 50 light bulb?
PAR is a outside rated light bulb - R is a indoor rated light bulb.PAR30 = outdoor flood bulb (spot light)R30 = indoor flood bulb (recess can) From MBT lighting & Sound. They are a commercial lighting group. I'm not sure about the indoor (R) / outdoor (PAR) differentiation posted above but the number after PAR refers to the diameter of the bulb. PAR30 would have a 3-3/4" diameter. I verified several PAR sizes. The below explanation is correct: "No, PAR is not referring to the golf game; PAR (Parabolic Aluminized Reflector) is actually the description of the lamp or bulb that goes inside a PARcan. The can is the container where the PAR lamp or bulb goes. The number beside PAR is a measurement that describes the diameter of the PAR lamp or bulb. To figure out the diameter, divide the number next to PAR by eight. For example, if you have a PAR64, divide 64 by 8 and you will have an 8-inch diameter lamp. PAR56 has a 7-inch diameter lamp, and PAR46 has a 5.75-inch diameter lamp, and so on. The diameter of the PAR lamp is useful to know when ordering a replacement lamp."
What does ITC2 mean in par 38 bulb?
PAR = Photosynthetically Active Radiation
What is a par 38 light fixture?
Par 38 refers to the style of bulb it takes.
How big is an albatros?
A double eagle..... 3 under par on a par 5
What does par mean when refers to CFL light bulbs?
What does "PAR" mean when associated with light bulbs? Is it the CFL watt equivalent of an incandescant bulb? Thanx, Bob Cushman
How big is the light bulb?
it depends on the size of the light bulb
How many light bulbs to light a big light bulb?
It depends how big the light bulb is to be honest
What is the wet bulb depression if the dry bulb is 20 and the wet bulb is 17?
15
What is the wet-bulb depression if the dry bulb is 20 and the wet bulb is 17?
15
What's an integer that is 7 under par?
There are a few numbers that are integer that is 7 under par. Some of the numbers are -5 and 20.
When did Par Is Dil Ko Kaise Samjaye end?
Par Is Dil Ko Kaise Samjaye ended on 2002-09-20.
How big was the first light bulb?
pretty big
