55-watt
It is equivalent to a 75 watt incandescent bulb
Incandescent produces about 10 lumens of light per watt of electricity Halogen produces about 13 lumens per watt Fluorescent and CFL produce about 50 lumens per watt So Fluorescent is the most efficient.
About 80%. An incandescent bulb produces 12 lumens per watt, (15 for halogen) while a CFL produces about 60 lumens per watt.
A 50 watt incandescent bulb is about 650 lumens.
Bulb brightness is measured in lumens which express the amount of light produced, while the electric power used is measured in watts. The typical efficiency of some different types of bulb is: Incandescent 12 lumens per watt Halogen 17 lumens per watt CFL (compact fluorescent) 50-60 lumens/watt LED (light-emitting diodes) 90-100 lumens/watt.
It is equivalent to a 75 watt incandescent bulb
Incandescent: 10-12 lumens per watt CFL: 50 lumens per watt.
Incandescent produces about 10 lumens of light per watt of electricity Halogen produces about 13 lumens per watt Fluorescent and CFL produce about 50 lumens per watt So Fluorescent is the most efficient.
About 80%. An incandescent bulb produces 12 lumens per watt, (15 for halogen) while a CFL produces about 60 lumens per watt.
This varies widely between manufacturers, whether it's a "clear" bulb or a "frosted" bulb, and what type bulb as in incandescent, florescent , quartz, etc etc
A 50 watt incandescent bulb is about 650 lumens.
Incandescent: 10-12 lumens per wattHalogen: 15 lumens per wattCFL: 50 lumens per wattLEDS: 50-60 lumens per watt in bulbs you can buy in a store, but some manufacturers have claimed more than twice that. sheerled.co.uk/
Bulb brightness is measured in lumens which express the amount of light produced, while the electric power used is measured in watts. The typical efficiency of some different types of bulb is: Incandescent 12 lumens per watt Halogen 17 lumens per watt CFL (compact fluorescent) 50-60 lumens/watt LED (light-emitting diodes) 90-100 lumens/watt.
Yes, the halogen bulb would provide about 30% more brightness (lumens) for the same electric power rating. So 70 watt halogen is about equal to 90-100 watt incandescent.
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
You want to compare the lumens of the bulbs.
A 150 watt halogen bulb will give off somewhere around 2000 lumens. These lights may give off up to about 2400 lumens.