Identify a warm-white E27 spare bulb
Illustrative inputs, not verified product specifications or care recommendations.The household question
The spare shelf needs base, power, brightness and colour information.

Measurements and assumptions
Entered values
| Bulb base | E27 |
|---|---|
| Power (W) | 9 |
| Brightness (lm) | 800 |
| Colour temperature (K) | 2700 |
| Spare bulbs | 4 |
| Item name | Identify a warm-white E27 spare bulb |
| Storage location | Household supply shelf |
| Minimum stock | 0 |
Carry out this task
- Open the linked tool and enter the displayed values.
- Copy the specifications from the actual bulb information.
- Choose Calculate & Save and compare the displayed result with the worked calculation.
Calculation and observed tool result
Counted stock = 4; keep the entered specifications with this label.
Recorded quantity: 4 items.
What the result means
Four spares retain a specific 2,700 K identification.
A mistake to avoid
Wattage alone does not describe brightness or colour.
Limits of this example
The example is not a certified fit for any fixture.
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