I've attached the latest [member=75217]squall_line[/member] post (#1722) to this thread to keep all the Barrina LED information in one place for easy consumption. [smile]
https://www.festoolownersgroup.com/...ostuff-did-you-buy-today/msg707720/#msg707720
Squall_line your current post is timely [smile] as today I was looking to purchase additional Barrina lights for the garage. For the basement shop I installed the 8 footers at 72 watts x 9000 lumen x 5000ºK. It suddenly became like daylight in the shop. I was going to install the same LED's in the garage but I noticed Barrina just released a new version. An 8 footer at 100 watts x 15000 lumen x 5000ºK so I purchased a 10-pack of those.
LED efficiency keeps going up and this is a great example. The luminous efficacy (akin to efficiency) is measured in lumens per watt. Older LED's were around 40-50 lm/W, the 72 watt Barrina's are 125 lm/W and the latest 100 watt versions are 150 lm/W. So you're getting more light for the same amount of power used.
The only down side is that the 72 watt versions allow 5 LED units to be daisy chained together while the 100 watt version only allows 3 units to be connected to each other. That just means you need to provide more electrical feeds but they can be from the same electrical circuit.
[member=75217]squall_line[/member] those extra 4' sticks make great trouble lights. I keep a couple around with the line cord/switch attached to the light. They're small, light, portable and they don't get hot but become a bright 4' line source of light.
Also of interest, you noted that the three 4 footers give you 15000 lumen in a 12' string at a cost of 120 watts. One new Barrina 8 footer will give you 15000 lumen in an 8' string at a cost of 125 watts. Life just keeps getting better. [big grin]
Just noticed this today, the basement lights are connected together with 4' cords but these close-coupled connectors will be better for a continuous string in the garage.
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