I was looking for information on this, but could only come up with this taken from website: www.homeenergy.org/archive:-
As we grow older, the amount of light required to perform a task such as reading a newspaper increases dramatically (for most people starting at about age 40). The light level needed continues to increase at almost geometric rates. Senior citizens particularly need high levels for activities like reading. If an auditor/installer finds a lot of 150-watt light bulbs in a house, there is probably a good reason. No single CFL currently available on the market that can match the output of a 150-watt lightbulb (although installing a socket doubler with two high-wattage CFLs will do in most circumstances). Attempting to replace a 150-watt incandescent with a 27-watt CFL will not work. The CFL will be removed quickly and the old 150-watt incandescent will be back in service.
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
The number of lumens needed to light a room depends on the size of the room and the desired level of brightness. As a general guideline, you can use around 20 lumens per square foot for general lighting. For example, a 100 square foot room would need approximately 2000 lumens for good lighting.
A 1141 bulb typically produces around 185 lumens.
One lumen makes up 1 ANSI lumen as they both measure the same output of light. ANSI lumens are used exclusively for measuring the output of projectors.
From 20,000 to 23,000 lumens depending on the brand.Average figures:Incandescent: 10 lumens per wattHalogen 13 lumens per wattCFL (low-energy) 50 lumens per watt
A good projector will have 2000 or more lumens, but an LED projector will have much less.
700 lumens
100 lumens=1257 candlepower from what I have found
Approximately 15 lumens per watt for halogen, so 300 lumens.
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
The number of lumens needed to light a room depends on the size of the room and the desired level of brightness. As a general guideline, you can use around 20 lumens per square foot for general lighting. For example, a 100 square foot room would need approximately 2000 lumens for good lighting.
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A 1141 bulb typically produces around 185 lumens.
One lumen makes up 1 ANSI lumen as they both measure the same output of light. ANSI lumens are used exclusively for measuring the output of projectors.
About 80 lumens per watt of electric power is normal for LEDs.
The Combitube from Rusch Medical contains a light output of 158 lumens.
Currently maximum LED luminous efficiency is about 114 lumens/W, measured at 50mA. Average luminous efficiency is about 104 lumens/W. Ordinary LED light effect is about 60 lumens / W. 18W is about 130 lumens is about 1080 lumens.