I am thinking of moving my sapling into a built-in wardrobe that will give me more space to grow and even let me start my big yield auto off. The problem is, the plant is currently in a boiler cupboard so has ample heat coming from the boiler, but the new space has no heat source so it's generally pretty cold in there.
Will my lamps provide enough heat? I think the space is around 5ft x 4.5ft x 7ft.
Here are the lamps I'm using:
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