On 09/06/2021 17:23, williamwright wrote:
On 09/06/2021 13:15, Andrew wrote:
And fluorescent tubes are reasonably efficient in terms of
light output vs power in.
They are the same as LEDS
Generally they're twice as efficient as fluorescent tubes. As this link
demonstrates:
https://en.wikipedia.org/wiki/Luminous_efficacy
The ballast also generally consumes a few watts.