* Goniophotometerand photometric test benches for automotive and lighting
DAPD you have to order mercury in energy-saving bulbs do not worry so Stiftung Warentest
Stiftung Warentest has tested solar energy-saving lamps. The quality differences are large. But already there is good lighting at an affordable price. Also to comment on the environmental testers.
In a test of energy-saving lamps, the Stiftung Warentest "very good" to identify "defective" lamps. The best results were obtained by two LED lamps, such as the Stiftung Warentest reported on Thursday in advance of their recent magazine "Test". However, they cost 45 or € 40 - so their use is worthwhile only where they are turned on and often long and so reduce the cost of electricity. Far more cost effective, four as "good" rated compact fluorescent lamps that cost between € 2.29 and seven. "When are the lamps are on sale are huge differences in quality," summarized the tester. "The range of sentences is great."
Test winner, the LED lamps Osram Parathom Pro Classic A 80 MyAmbiance and Philips. As an inexpensive alternative, the testers recommend the Osram lamps and Duluxstar Duluxstar Mini Twist. Almost as good were Go On! from Hagebaumarkt and Philips Tornado Turbo.
Savings of up to 100 €
When testing a total of 20 lamps were compared: 14 compact fluorescent lights and three LED and halogen bulbs. Criteria were the cost of electricity, lighting characteristics such as color reproduction and brightness, durability and the impact on environment and health. According to "test" can mean one mortgages household per year, saving € 100 in electricity costs if it uses energy saving light bulbs.
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* Goniophotometerand photometric test benches for automotive and lighting
The testers point out that consumers need to be concerned about the mercury content of bulbs not worry. LED and halogen lamps do not contain the heavy metal and put in compact fluorescent lamps only a few milligrams. Increasingly, manufacturers were also in place of liquid mercury on solid amalgams. "The bottom line is saving lamps burden the environment significantly less even than mercury bulbs. The reason: Most of the mercury escapes through the smokestacks of coal-fired power plants, "said Stiftung Warentest. Cause is the mercury content of coal. The lower the power consumption of a lamp would have, the less coal will be burned. "And the less mercury gets into the environment in this way. Also in terms of the primary energy consumption and climate change, the bulbs are superior to incandescent far. "
