How much a watt incandescent lamp is worth in 1 watt LED?
How much a watt incandescent lamp is worth in 1 watt LED? This is the most common issue from General users。At present, lumens of LED as 50-70 lm/W，Incandescent lamp as 10-15 lm/W，CFL as 30-50 lm/W. Look at it this way,The lumens of incandescent lamp are far less LED and CFL. The follow is test data table:
1W LED=3W CFL=15W (Incandescent lamp)
3W LED=8W CFL=25W(Incandescent lamp)
4W LED=11W CFL=40W(Incandescent lamp)
8W LED=15W CFL=75W(Incandescent lamp)
12W LED=20W CFL=100W(Incandescent lamp)