Sylvania G53 LED bulbs are designed to replace halogen bulbs with the same fitting. 53 stands for the 53mm between the pins of this fitting. The G53, also called AR111, is mostly used as generic lighting due to the broad beam angle. When replacing your G53, make sure your new Sylvania G53 LED bulb has the same light color and (replacing) wattage. This way, you will maintain the light effect that your current light source emits.
The colour code is a combination of the colour rendering index (CRI) and the colour temperature (K). The first number refers to the CRI (1 = very poor colour rendering, 9 = maximum accuracy). The second and third numbers refer to the colour temperature. For example, a light with a colour code of 830 has very good colour rendering and produces a warm white light.
Beam Angle (degree)
The beam angle indicates the spread of the light in degrees. Small beam angles are preferred for accent lighting, while larger beam angles are for general lighting purposes.
Colour temperature (Kelvin)
The colour temperature refers to the colour produced by a light. It's measured in Kelvin (K) and ranges from warm white (1700K - 3000K) to daylight white (6500K). Neutral white (3100K - 5000K) is mainly used for general lighting applications.