However, by switching to LED (Light Emitting Diodes) bulbs, you can cut energy consumption by up to 10 times. What’s more, LED bulbs can last for up to 22 years, so you can save up to 90 per ...
The shrinking number of producers making the latest high-performance halogen bulbs has allowed us to also include HID gas discharge lamps in our annual test. For the halogen lamps we returned to ...