Osram light bulbs are one of three genuine manufacturers of light bulbs in the world. We therefore stand over our bulbs as we know they are not spurious bulbs. Bulbs have gone from traditional to halogen to LED with the efficiency & longevity of the bulb increasing exponentially. We are 43 years in business and recommend Osram light bulbs as the best on the market. The life span of bulbs has gone from 1000 - 15000 hours along with the energy usage reducing to 10% of old. LED is the way to go. You will pay a little more initially however the payback is huge.