Power: approx. 9W
Diameter: 50mm
Height: 38mm
Luminous flux value: 200LM
That's only 22lm/W, a clear failure, close to the efficiency of an incandescent.
The 10W diode emits 600lm, or 60lm/W, which falls just short of a 63lm/W CFL. However, it doesn't include the power supply, and power supplies / voltage regulators on this scale are a big source of inefficiency for LED lamps.
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