North Bengal Development Department Tender

Supply of 12 Watt & 2200 Lumens All in One Solar LED Street Light Luminaires having mono-crystalline solar cel Detailed technical specifications given below: System Wattage: Should be more than 12 Watts (+/-5%). System Lumen Output: Should not be less than 2200 Lumen. System Efficacy: Should not be less than 180 Lumens/ Watt. Battery Chemistry: Lithium Ferro Phosphate (LiFePo4) battery should be used. Battery Capacity: ≥18Ah & 12.8V. Panel capacity 30w. Charging Electronics: Integrated MPPT charger with driver. Charger Efficiency: 90% Driver Efficiency: 90%, autonomy 2 self-support nights. LED Burning Hours: Should be 50000Hrs. @L70, IP Rating: IP65, it should have metal housing. CCT (Color Temperature): 5700K (+/- 5%), CRI: 70 (+/- 5%) Luminaire should have in- built Microwave sensor. Charging & Discharging LED Indicator: Should be provided in luminaire. Input Voltage: 12V DC, adjustable Tilt Angle (Deg.): Should be 0 - 15 Deg. Adjustable, solar cells Efficiency: Min. 12%, Mono-crystalline, operating Temp Range for LightEngine: 0 to+45 Deg.C Operating Humidity: Up to 95%/ v. IK for lens: IK08. Safety of Solar Panel Module Manufacturer should provide LM79/ LM80 reports corresponding to the luminaire/ LED chip along with Type Test Certificate. Warranty - 3-year warranty against manufacturing defects from date of supply.(Make-Philips/Wipro/Crompton)

Supply & Erection of G.I Octagonal designed decorative 7 mtr long conical hot dip galvanized mild steel step pole (inbuilt loop box) with bottom dia 130 mm, top dia 70 mm, thickness 3 mm, base plate 220x220x12 (LxBxT) mm, J-bolt(GI) size 4x20 dia (no xdia) mm, both length 600 mm,projected bolt length. 48.30x3.25 mm thick base plate of 220 mm, with 4 nos holes on 220X12 mm PCD suitable for M16X600mmX4 Nos bolts along with civil foundation work.Make- (Utkarsh / BP/ Transrail)

Painting Block Letters or Digits within a circle/square as required, with ”Black Japan” paint of approved make & brand, the size of letters and digits as given below (a) Size 50 mm and up-to 75 mm