Diamond Hps light Reflector Medium & Large Available from Ecotechnics is the result of 15 years of experience in the horticultural lighting industry, designed in conjunction with the UK's leading photometric laboratory and using their state of the art equipment. In tests the diamond produces an average light intensity of up to 50% more than other reflectors on the market State-of-the-art professional diamond reflectors. In lab tests, these reflectors produced an average light intensity of up to 50% more compared to most inferior designs. Designed to compensate for the natural imbalance in light distribution and re-distribute the available light to give a more even spread of light with less hot spots. The unit is ready assembled complete with lamp holder, supply lead with EIC plug and is supplied with full instructions. small 250w-400w-600w Large 600w-1000w