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Calcimator

UV/LED Lamp Replacement Calculator

Calculate lamp bulb replacement schedules, operating costs, and per-cure costs based on daily usage patterns.

Inputs

Results

Replace bulbs in (months)

3,655

Daily lamp-on time (hrs)0.45
Monthly lamp-on time (hrs)9.7
Total cures per day36
Annual replacement cost$0.21
Monthly electricity cost$0.06
Annual electricity cost$0.72
Total annual lamp cost$0.93
Cost per cure cycle$0.00
Rated bulb life (hours)50,000
How to Use This Calculator
  1. Select your lamp type: 1 = UV fluorescent, 2 = LED, 3 = UV/LED hybrid.
  2. Enter lamp wattage (W), average clients per day, and cures per client.
  3. Enter average cure time (sec) per cycle and work days per week.
  4. Read the recommended replacement interval (months) — UV lamps should be replaced at 80% of rated life for safety.
  5. Review daily and monthly lamp-on time (hours) and cost per cure cycle.
  6. Use total annual lamp cost (replacement + electricity) to budget lamp maintenance.

How the result changes with Clients per day

Clients per dayReplace bulbs in (months)
37,309.9
111,993.6
201,096.5
27812.2

What each input means

Lamp type
1 = UV fluorescent, 2 = LED, 3 = UV/LED hybrid.
Lamp wattage (W)
Lamp power rating in watts.
Clients per day
Average number of clients using this lamp per day.
Cures per client
Number of curing cycles per client (base + color coats + top coat).
Average cure time (sec)
Average seconds per curing cycle.
Work days per week
Days per week the lamp is in use.

What each result means

Replace bulbs in (months)
Recommended months until bulb replacement (UV: at 80% rated life for safety).
Daily lamp-on time (hrs)
Total hours the lamp is active per day.
Monthly lamp-on time (hrs)
Total lamp operating hours per month.
Total cures per day
Total curing cycles performed daily.
Annual replacement cost
Yearly cost of bulb or unit replacements.
Monthly electricity cost
Monthly electricity cost at $0.12/kWh.
Annual electricity cost
Yearly electricity cost for the lamp.
Total annual lamp cost
Combined replacement and electricity cost per year.
Cost per cure cycle
Lamp operating cost per individual cure cycle.
Rated bulb life (hours)
Manufacturer-rated bulb lifespan in hours.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Lamp type = 2, Lamp wattage (W) = 48, Clients per day = 6, Cures per client = 6 = 6 input(s) provided
  2. Calculate Replace bulbs in
    Replace bulbs in
    3655 = 3655
  3. Calculate Daily lamp-on time
    Daily lamp-on time = dailyOnTimeSeconds / 3600
    0.45 = 0.45
  4. Calculate Monthly lamp-on time
    Monthly lamp-on time = weeklyOnTimeHours * 4.33
    9.7 = 9.7

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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