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Replace a 50 watt halogen spot with a GU10 LED of 4.5 to 6 watts, 400 to 550 lumens and a beam angle of about 38 degrees. Below you can read why.

For an office with 500 lux, count on roughly one 60x60 cm LED panel of 40 watts per 5 m². Below you can see how to work it out exactly for your room.

A recreational outdoor court needs about 8 floodlights of 200 watts on 4 poles, a club court 8 floodlights of 320 watts. Below you can read how to work this out yourself.

You calculate the number of high bays as lux times m², divided by the useful lumens per fitting. With the table in this article you will know in one minute.

An LED high bay is mounted at 5 to 12 metres. The higher the hall, the more watts and the narrower the lens you need.

With around eight LED floodlights on four masts you light a 20 by 10 metre padel court evenly for club and competition play.

Two ways to switch from fluorescent to LED, with the savings and the right colour temperature for each space.

With lux and square metres you can quickly work out how many lumens and how many lights a room needs.

Work out in three steps how much electricity LED saves and how quickly your investment pays back.