UV Curing worked example

UV Lamp Replacement Cost with number of lamps in this swap of 2 lamps: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop number of lamps in this swap to 2 lamps, then walk the calculation through step by step. Roll lamp price, downtime, technician labor, and the scrap risk of running too long into a true cost-per-swap and annualized lamp cost.

The inputs for this scenario

  • Number of lamps in this swap: 2 lamps (the input this scenario stresses; the baseline uses 4)
  • Unit price per lamp: 650 $ / lamp (held at the documented default)
  • Downtime cost during the swap: 450 $ (held at the documented default)
  • Scrap / rework risk allowance: 200 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Lamp material cost = lamps × unit price.
  • True cost per swap works out to 1,950 $ / lamp swap at these inputs, and this is the headline figure for the scenario.
  • Cost per lamp works out to 975 $ / lamp at these inputs.
  • Lamp material cost works out to 1,300 $ at these inputs.
  • Downtime + scrap risk works out to 650 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where number of lamps in this swap sits at 4 lamps and the headline result is 3,250 $ / lamp swap, this scenario comes in 40% below the baseline at 1,950 $ / lamp swap.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to number of lamps in this swap, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. Downtime and scrap allowances are estimates; the true figure depends on your line's contribution margin and how much re-qualification a swap actually triggers.

Results at a glance

  • True cost per swap: 1,950 $ / lamp swap (headline result)
  • Cost per lamp: 975 $ / lamp
  • Lamp material cost: 1,300 $
  • Downtime + scrap risk: 650 $

Run it with your numbers

  • To rerun this with your own numbers, open the live UV Lamp Replacement Cost calculator, set number of lamps in this swap to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.