Measuring light for plants: a phone, lux meter or PAR meter?
The shelf looks bright, but is every pot getting its share? Find out how to check light at the leaves, when a phone is enough and when a separate meter earns its place.
Light and grow lights for plants
Lamps, lighting hours and measurements at leaf level, explained with practical examples.
Guides in this topic (3)
Winter houseplant lighting: how to choose a grow light
Check the light at your window, compare LED fixtures, position them over the leaves and plan the light period. A practical starting point for established foliage houseplants.
Automation of light in a grow box: schedule, relays and protection
How to automate lighting in a grow room without dangerous overloads: schedule, relays, smart sockets, manual mode and connection with a care log.
Help me choose where to start
Where to start
Check where your plants stand and how much light reaches their leaves. Then choose a lamp and its schedule.
Work out where to put the lamp and how long to keep it on.
When a phone or lux meter is enough, and when a PAR sensor is useful.
A shared schedule for your lamps
Control lighting through smart plugs and adjust schedules across growing zones in GrowerHub.