GU10 Halogen Comparison With LED Spots
Various LED-spots from different manufacturers were tested. Only the characteristics recognizable by the consumer were examined. The consumer wants the same bright lighting with less power consumption. Now, however, with LED spots.
According to dictfurniture, the amount of light emitted by a light source (=luminous flux ) is distributed in the space as a function of the radiation characteristic/ radiation angle. The more light is thrown on a wall, the brighter it appears. As a characteristic, light measurement technology uses the term illuminance, measured in lux (luminous flux per square meter).
If radiators with the same beam angle are measured, the luxmeter shows a relative value of the different light quantities. At a higher beam angle, the light is distributed more in the space so that less light is incident on the measuring sensor.
Comparing the measured values, the following results:
The performances of the halogen lamps (1) and (2) show expected conditions
7W LED spots (5) and (7) reach lighting intensities comparable to 35W – 50W halogen spotlights
The 4W LED spots (4) produces a light that is max. On comparable 20W halogen lamps
Noticeable is the Lumixon spot (3) according to the manufacturer with 2 W to produce a luminous flux of 200lm. Unfortunately, the measurement result can not be confirmed.
The actual power consumption was 3W. A calculation of the luminous flux yields a value of approx. 120 lm.
The high luminous flux of 500lm of the 7W spotlight from Poodar is also striking. This already uses the modern Cree-LEDs MT-G2. The illumination intensity reaches nearly the value of the 7W LEDON-emitter despite a larger radiation angle.
After further investigations and confirmation of the data, this spotlight will be included in the LEDclusive.deportfolio.
This series of measurements shows that data sheet data should always be considered critically.