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Solar Tube Lights

Kurt Said:

30watt panel to run 2 tube lights and a fan, what's battery requirement?

We Answered:

The twelve hours of sunlight is coming at various angles. You have to count it as only about seven hours full light. For two tubes and one fan you need about 150 watts energy. This means that at an achievable 70% conversion a 30 watt panel can run all three for just about one hour only for a full day's sun.

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