supply of procurement of hand held light, , hand held light weight uv-a lamp with 4uv led bulbs operated by both ac and battery, rechargeable for zyglo te sting and magnetic particle inspection with the following facilities. (1) the lamp shall be provided with a high quality interferenc e glass filters. (2) the intensity of the lamp should be minimum 4000 micro watts/sq.cm at a distance of 15 inch from the filter a nd white light emission should be less than 2ft. (3) battery, run time shall be at least 4hours. (4) the unit shall be of light weight construction and shall not weigh over 1.5kg. (5) the housing of unit shall be high strength material such as aluminum. (6) the u nit shall be suitable for operation at 220v, 50hz. single phase power supply. (7) it should be durable and trouble free operation f or at least two years from the date of supply.the firm should provide certificate for intensity of the lamp. [ warranty period: 3 0 months after the date of delivery ] ]