Osram E27 LED bulbs are LED replacers for conventional E27 bulbs. The E27 base is also known as a large Edison screw. You can replace conventional E27 bulbs for energy efficient E27 Osram LED bulbs by simple screwing one out and placing another in. You choose the right E27 LED bulb by selecting the right specifications in the filters on the left. Use your current light source for guidelines. Maintain the same color and shape and chose the right replacement wattage to maintain your current light effect when switching to Osram E27 LED bulbs.