Script is only effecting one light but not both?

So basically how this script is when "Demon" is in radius of "Light" the light (pointlight) is suppose to dim, so far the script works, but I cant seem to make it work on two lights at the same time?, I have been trying to fix this for about an hour and cant find the solution.

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-- || object references ||
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local ws = game:GetService("Workspace") -- GetService is used in this context to create a shorthand for workspace, "ws". This isn't necessarily relevant to the script, but it's something I like to do when working with workspace objects
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local part, npcTorso = ws.Light, ws.Demon:FindFirstChild("Torso") -- This assigns "part" to the part in Workspace, and "npcTorso" to the "Torso" part in the NPC (assuming there is one)
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local light = part:FindFirstChild("Light") -- The light will be referenced by the variable "Light", assuming the location of the light is "game.Workspace.Part.Light".
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-- || configurations ||
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local maxBrightness = 2 -- This is the maximum brightness, where the NPC is farthest from the light
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local minBrightness = 0.1 -- This is the brightness that will be shown when the NPC is directly at the same position as the light.
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-- || numbers that change ||
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local radius = 30 -- This is the radius in which the light will start to dim when the NPC comes near it.
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while wait(1/30) do
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    local distance = (npcTorso.Position - part.Position).magnitude -- See above, this is getting the distance between the NPC and the part
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    if distance <= radius then -- This checks if the NPC is within the radius in which the light will be affected
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        local brightness = (distance/radius) * maxBrightness -- This calculates the brightness based on distance
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        if (brightness < minBrightness) then -- If the brightness drops below the minimum brightness
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            brightness = minBrightness -- Set it to the minimum brightness
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        end
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        light.Brightness = brightness -- Finally, set the brightness of the light
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    end
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end
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-- Huge credit to nikon1j1 for huge help!