Hoping that it has developed technology the LED, I have these LED bulb using a conventional 40 Watt lightbulb matt and a comparison of Samsung (which is sold on Amazon as Samsung LED E27 Classic A 7.2 W). Both rich bulb water. From below, the brighter than the light bulb, but not for radiation upwards. It can not use for each lamp and lighting situation you. The light is also very good and similar to the light bulb. Other than artificial or artificially cozy trimmed but very pleasant. The Samsung is a little lighter and cheaper with lower fuel consumption. For this LG has a nicer version.