Updated 24 May 2013

Edapt

Energy Saving Lamp, TWES20WB

Bottom line: This CFL bulb has OK light output and excellent switching life. Its warm-up time is excellent, too.

Energy Saving Lamp, TWES20WB
Consumer score
80
Price guide (per bulb)

$4.99

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Test results

Overall score
Very good
80
Light output
OK
6.3/10
Switching life
Excellent
9.2/10
Warm-up time
Excellent
9.0/10

Good points

  • OK light output.
  • Excellent switching life.
  • Excellent warm-up time.

But

  • No Energy Star.

How we test

Guide to the table

Our test was carried out in an independent laboratory in New Zealand. Models were “warm white” 18-20Watt CFLs.

Overall score

  • Light output (40 percent)
  • Switching life (30 percent)
  • Warm-up time (30 percent)

Light output: Based on relative light output percentages.

Switching life: Calculated on the number of on/off cycles (up to a maximum of 6000) the bulb could withstand before it failed. A score of 10 = no failures.

Warm-up time: Based on how long it took for the bulbs to reach 90 percent of their maximum brightness.

Price is what we paid in January 2013. Prices are per bulb.

Full specs

Model

Price guide (per bulb)
$4.99

Specifications

Relative light output
95%
Warm-up time (min:sec)
0:15
Watts
20
Style
Spiral
Energy Star
×
Pack size
1
Dimmable
No
Purchased from
The Warehouse