supply of fan cooled black light. , supply of overhead uv-a 5 led uv lamp with potentiometer for varying uv a intensity w ith following specification. a) uva intensity = 7000 micro watt/ sq. cm (measuring distance: 380 mm o r 15 inch) b) uniform coverage area. c) uv-a intensity adjustable with potentiometer. d) wave length 3 65 (+/-) 5nm e) the extension cable shall be 3 cores with length =1 meter. each core shall be of differ ent colour. f) power supply: 230v (+/-)10%, 50 hz. g) toggle switch for power on & off facility h) prot ection class: ip65. i) splash proof & dust proof unit j) 5 high performance uv-leds mounted on individu al pcbs for simplicity for onsite maintenance.uv led mounted pcbs are easily replaceable. k) the mos t ergonomically designed uv-led over head lamp for mpi inspection. l) dufl -7k over head lamps are readily fits into existing at inspection at wheel shop. m) the make shall compliance with the astm e 3 022 standards make: dndt, labino, magnaflux, sims & spectronics [ warranty period: 30 months af ter the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]