These are used in catering applications as they offer a better protection to food ingress and they are more resillient to impact breaks. 300 Watt 240 volt Clear quick fit low pressure catering lamp. This lamp converts more of the energy used into the most efficient parts of the infrared spectrum for food warming, IRA & IRB. This means they perform approx. 10-15% better and last longer. They also boast a reduced internal gas pressure making them safer. They will not blow or shatter on failure.