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 »

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

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 »

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 »

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 »

Convert lumens to watts with the following formula: Watts = Lumens / (Lumens per Watt), or W = lm / (lm/W). The number of lumens per watt is dependent on the type of light and the manufacturer. Incandescent light bulbs a... More »

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