The glass body of this PAR20 reflector light bulb mimics the exact size and shape of traditional light bulbs, while still providing the energy-saving benefits of an LED light bulb.It is perfect for those wishing to upgrade to LED light bulbs while ensuring that the new light bulbs will not look out of place with existing fittings.RA Plus technology provides an impressive CRi >95 rating for excellent colour reproduction. Fabrics and objects under the lamp\'s light will not fade over time, as the light bulb emits no UV rays. It is ideal for retail displays, museums, photography, or any other application where an object\'s true colour needs to be accurately reproduced. DuoDim™ Technology means that the light bulb is compatible with both leading and trailing edge dimmers.PAR20 ES-E27 Edison screw (27mm) cap suitable for existing fittings. RA Plus technology with CRi >95 rating. No UV - will not cause fabrics/objects to fade over time. Dimmable. IP65 rated - suitable for indoor and outdoor use.This PAR20 Reflector is a newer product from Crompton Lamps and supercedes their old PAR20 Reflector part codes: 4580, HP30100F, HP2050F, HP3075F, HP2075F, BPCFGLO20WWBC-1BL, BPCFGLO20WWES-1BL, AB021, AB022.Please note that even though the light bulb itself is IP65 rated, it must be used in a suitable IP65 rated socket in order for it to be used outside safely.Please visit the manufacturer\'s website for up-to-date dimmer switch compatibility lists for this Crompton Lamps LED PAR20 Reflector light bulb before purchase.To find the answers to some common questions about LED dimming, please read our guide Dimming for Dummies.