To convert 1500 lumens to watts, first determine the luminous efficacy of the electric light source. Then take the number of lumens and divide this by the figure for luminous efficacy. More » Science Measurements

To use a watts-to-lumens conversion table or calculator, such as those at or, find the type of light source on the table or calculator, and then find the lumens associated with the wattage rating ... More » Science Measurements

A light's output in lumens can be found by checking the Lighting Facts label prominently displayed on the packaging of most lighting fixtures. If lacking a Lighting Facts label, the output of lumens can be determined thr... More » Art & Literature
similar articles

To convert watts to lumens, first find out the efficacy rating, which is in lumens per watt. The formula for this conversion is lumens = watts x (lumens per watt). More » Science Measurements

A 60 watt type-A light bulb is an incandescent electric light source; it operates with 60 watts of power and has the traditional bulb shape that is categorized as type A. Incandescent bulbs use a tungsten filament that g... More » Home & Garden Decor Lighting

A 100-watt incandescent bulb gives off 1,600 lumens. Watts measure the electrical energy required to light a bulb, while lumens are a measure of the brightness of the light produced. More » Science Measurements

Candlepower and lumens are both measurements of light, but they measure different qualities of light. Convert candlepower to lumens by multiplying the amount of candlepower by 12.57. The resulting figure is the equivalen... More » Science Measurements