FLOAT Output

There's no trick here. You type a decimal number into a box, and a FLOAT comes out the other side. That's the entire node, and honestly that's fine - sometimes you just need a typed, labeled number sitting on your canvas instead of a bare widget buried inside another node.

Why a node this simple earns a place in a graph

ComfyUI lets most nodes have their float parameters typed directly into a widget on that node - a KSampler's CFG slider, a blend node's opacity. The catch is that those values are invisible from anywhere else in the graph; they live inside the node they belong to. A standalone float node like this one exists so a single number can be reused - plug it into two or three places at once (say, feeding the same opacity value into two blend nodes so they always stay in sync), or so it can sit as one clearly labeled control near the top of a large workflow instead of hunting through nested nodes to change it.

It's also, per this pack's own framing, one of the raw ingredients for the XY Plot grid-comparison workflows the pack is built around - a row of float values (CFG scales, denoise strengths, LoRA weights) is exactly the kind of axis a qq-nodes-comfyui grid sweeps across.

The one field, and a real limit worth knowing

float_input - a decimal number. Default 0.05, and this is the part worth reading closely: the range is 0.01 to 999.99, stepping by 0.01. That floor matters - you cannot type 0 or a negative number into this node. If your workflow needs zero or a negative float (a negative CFG offset, say, or an opacity of exactly 0 to fully hide a layer), this node can't produce it; you'd need a different value node or a math node that permits the full range.

The single output is FLOAT, unlabeled beyond its type - wire it anywhere a decimal number is expected: opacity sliders, denoise strength, CFG, LoRA weight, whatever your graph calls for.

Installing it

ComfyUI Manager: search ComfyUI-ReplenishNodes, install, restart. Or manually:

cd ComfyUI/custom_nodes
git clone https://github.com/hben35096/ComfyUI-ReplenishNodes

Pure UI/logic node - nothing to download, no dependencies beyond the pack itself.

Where people get tripped up

The min/max clamp is the only real gotcha. If you need a float outside 0.01–999.99 - most commonly a true zero - this node will silently refuse the value or clamp it rather than error loudly, so double-check the number actually landed where you expect before you queue a long batch relying on it.

Beyond that, there's genuinely not much to troubleshoot. It's a number box. If the value isn't reaching the node you expect, the problem is almost always the wire, not this node - check that the FLOAT output is actually connected where you think it is.