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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 else can I help you with?
What is the definition of venti?
20
What is the origin of 'quixotic'?
it comes from the novel "don quixote" definition is here: http://dictionary.reference.com/wordoftheday/archive/2001/09/20.html
What are au's?
An au is an astronomical unit, or how far light will travel in a year.
What is the definition of persistence and repetition?
persistence is to keep on going despite anything that might stand in your way and repetition is like a child saying mom mom mom like 20 times
What does 20-20 mean?
Do You mean 20-20 vision?
What are the best energy-efficient options for replacing a par 20 light bulb?
The best energy-efficient options for replacing a par 20 light bulb are LED bulbs and compact fluorescent bulbs. These bulbs use less energy and last longer than traditional incandescent bulbs, helping you save on electricity costs in the long run.
How big is a par 20 bulb?
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.
What is the alt code for light bulb?
you can make a light bulb by holding alt + 20.
How many Jimmers does it take to fix a light bulb?
20 billion
What is the mass of the light bulb?
Depending on the type of light bulb the mass can vary. A standard LED bulb weighs 6.2 ounces.
What does a sodium vapor light bulb cost?
£20 35w £24 55w
What is the difference between a LED light bulb and a regular?
a regular light bulb emits about 80% heat energy and only 20% light energy, whereas leds emit about 70 % light and 30% heat
What type of light is a 20 watt energy saving bulb Halogen Incandescent neon or fluorescent?
A 20 watt incandesent bulb is dim. For a medium sized room you need 100 watts. A 20 watt halogen bulb is brighter but still quite dim. These are marketed as low-energy but they are not. For a medium sized room you need 80 watts. A 20 watt fluorescent bulb can light a medium sized room quite brightly. This is a genuine low energy bulb.
What is 60w light bulb?
a normal incandescent 60 watt light bulb uses 60 watts of electricity to produce 20 watts worth of light, and 40 watts worth of heat. It is more of a heat bulb than a light bulb. it is great if you can capitalise on the free heat, but if it is not cold in your house, turn it off. is there a better bulb? no. why are they ideal? cheap (as low as 10 cents for the el cheapos), never change shape/design/size/compatability, make pleasant light I could go on for an hour, but the best bulb is the cheapest.
How many people fall at night without a light bulb?
10-20 per household
How much did edison's light bulb cost?
The first commercially available light bulb cost $1 in 1881, which was three years after Thomas Edison developed the first practical incandescent light bulb. The Seattle Times reveals the $1 price in 1881 translates to $23 in 2013. By 1910, the cost of a light bulb dropped to 17 cents.
Does the brain operate on the same amount of power as a 10 watt light bulb?
No, the brain does not operate on the same amount of power as a 10 watt light bulb. The brain is estimated to use about 20 watts of power, which is roughly equivalent to the energy consumption of a dim incandescent light bulb.
