'The lumen, a unit of this, is the amount emitted from a source one candela strong'
light
SCIENCE GLOSSARY: The lumen, a unit of this, is the amount emitted from a source one candela strong
The lumen, a unit of this, is the amount emitted from a source one candela strong
The lumen, a unit of this, is the amount emitted from a source one candela strong
SCIENCE GLOSSARY
light
SCIENCE GLOSSARY