It has a colour temperature of 6500 K. The bulbs do not heat up and emit cool white light that is bright. Having a rated luminous flux of 600 lumens, they have a clear illumination capacity. The bulbs require a voltage of 230 V and have a frequency of 50 Hz. They have a B22 base that can be easily fixed to compatible sockets, without professional assistance. As compared to normal incandescent lamps, these bulbs have a longer shelf life.The Crompton Set of 3 (2 of 12watt +1 of 9watt) LED Bulbs are environment-friendly and devoid of any toxic chemicals. They are made of quality material that is resistant to shocks which ensures safety for all. So now you do not have to worry about accidents. They can save more energy as compared to ordinary bulbs. This will help you save money on your electricity bill. They can act as effective lighting solutions for various places, be it commercial of residential.