Is it enough an 10W LED light bulb so this to illuminate your workbench?

[Kiriakos GR]

I have just repaired another one lucky find, an damaged 10W LED light bulb.

This actually consuming 12W at 0.640 PF (230V).
And or 18VA. 
I did sealed it back with hot-glue, and I did test it for an hour.

The problem with all these 10W LED light bulb, this is the amount of delivered lumens.
In the distance of 1 meter, the brightness it is considered as powerful enough,  but if the distance this increases at 1.5 meters, the brightness this is significantly reduces.

Long story in sort, at my current evaluation, for having a sphere of bright light at 1.5m around  me,  I will need an LED light bulb of 30W.
Neither if you combine two of 10W light bulb's (place them side by side), they cannot deliver equal amount of lumens, as it does a single bulb if this is placed at 1 meter distance.

At buildings construction for a small shop,  these are usually three and a half meters wide. 
According to my simple experiment, now I know, that an 60W LED light bulb this is the starting point, if I plan to illuminate a workbench, along of surrounding space, a sphere of 3m in diameter.