Best Answer

1 lumen = 1 candela per steradian.

1 candela = 1/683 watts per steradians (assuming 540nm light wavelength).

Assuming that the light is collected from a single steradian:

1 Lumen = 1 Candela -> = 1/683 Watt -> Watt = 683 Lumens

1 Joule = 1 Watt per Second -> Watt = Joule/Second


683 Lumen = 1 Joule/Second

Under the above assumptions1 Lumen = 1/683 Joule/Second
User Avatar

Wiki User

โˆ™ 2012-09-13 19:31:06
This answer is:
User Avatar
User Avatar

wesam salih

Lvl 1
โˆ™ 2022-08-11 14:08:05
Helpful answer thanks
User Avatar

Sasuntidictous Rhoir...

Lvl 1
โˆ™ 2022-11-27 17:00:15
1 lumen = 1 candela MULTIPLIED BY a steradian, not divided by.
Study guides


17 cards

Which of these is a characteristic of nonmetals

What is the only factor needed to calculate change in velocity due to acceleration of gravity 9.8 ms

What term is used to describe splitting a large atomic nucleus into two smaller ones

Which type of reaction is the burning of gasoline to release heat energy

See all cards
338 Reviews
More answers
User Avatar

Collins Kabwe

Lvl 2
โˆ™ 2023-03-22 13:20:51


This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many lumen are in 1 Joule?
Write your answer...
Still have questions?
magnify glass
People also asked

Was rev paul Jones gay?

View results

How many moles of silver atoms are in 1.8 x 1020 atoms of silver?

View results

If there are 45 cytosines in 100 base pairs how many adenines are there?

View results

Does tricare for life help pay for lift chair?

View results