supply of supply of hand signal tricolour led torch , hand signal-tricolour led torch 1) a.white-1 single led, b. red-7 nos (flashing type) c. green - 7 nos (flashing type), 2) 3 watts, 3) rechargeable 4) 3.7 volts lithium battery with external charger with abs body,5. battery capacity-3500 mah 6. aluminum body -5.5 inch length, 7. 1 year warranty, 8.mak e/brand-watts/brite light/similar . torch must bear printing of (a) indian railways (b) engg /sa, suppliers t o provide 3 nos of sample for approval from the consignee officer before bulk supply . [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]