Litewel Electronics India Pvt Ltd
Emergency Light Manufacturer and Specialist in Mumbai, India

331 100 21 | 5W Remote CFL Elevator Emergency Light

331 100 21 is an Industry Standard Elevator Emergency Light supplied on an OEM basis to major Elevator manufacturers. This unit contains a 5W CFL Luminare fitted in the elevator cabin and a remote mounted main unit. . Over 40,000 units of this type of Emergency Light in the field bear witness to its durability and reliability.

Features include,

  • Fully-Maintained Emergency Light | works on both mains and battery

  • Split type unit with remote mounting

  • Self Timer Function for Cut-off

  • Industry Standard Product adopted by OTIS Elevators

Availability: In stock


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Industry Leading 18 month warranty!




  • Maintained (AC/DC) model with instant automatic switchover to battery backup on A.C. supply failure. Reverts back to battery charging mode on supply resumption.
  • Split Type consisting of : 1) Main Unit 2) 5W PL Lamp assembly
  • Regulated battery charging with Constant Voltage Tapering Current Characteristics and goes into Trickle charge when battery attains full charge.
  • Unique TBP (TripleBatteryProtection) Features:-
    • Automatic low battery cut-off.
    • Over-Voltage Protection.
    • Special Electronic battery isolation circuit ensuring:
      • Batterydoes not accidentally or otherwise go into deep discharge thereby optimizing battery life and ensuring product performance in areas of frequent power failure.
      • No current drain after switch-off. Partial battery self-recovery even without charging.
  • Manual Switch for switching OFF Emergency Light when not required
  • A.C. Triggered automatic reset function.
  • The PL lamp illumination is uniform throughout, till battery cut-off stage.
  • Uses high efficiency OSRAM/GE compact fluorescent PL lamp.
  • Ease of battery replacement with separate battery compartment.
  • Auto current limiting in the absence of PL lamp/broken PL lamp.
  • Corrosion resistant powder coated metal body.
  • Field proven design.
  • Conforms to IS 9583-1981 and IS 1913(P-1)-1978 as tested at Regional Test Centre (W.R.), Government of India Ministry of SSI, Mumbai.


  • Switching OFF Emergency Light: Key Switch / Automatic through Timer (15min / 30min / 45min)

Technical Specifications

  • A.C. supply (for charging battery): 240 VAC ; 50/60 Hz.
  • Battery: - Sealed lead acid rechargeable maintenance free battery Capacity: 6V 4.5Ah.
  • PL Lamp: GE/OSRAM: 5W
  • Backup Time:  3.5 Hours
  • Dimensions:
    • L -187mm
    • B - 200 mm
    • H - 60 mm

Additional Info

Additional Info

Country of Manufacture India
Color Gray
Size M

Litewel Advantage

We give you quite a few good reasons to go with our products, right from the unsurpassed reliability to the unbeatable 18 month warranty on our products.

18 Months Warranty

18 Months Warranty

Litewel offers an industry leading 18 month warranty* across its entire product range.

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Unbeatable Reliability

Unbeatable Reliability

Our products have field proven reliability, with more than 50,000 units currently in the field and some of them in use for over 10 years

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Eco Friendly

Eco Friendly

With ROHS compliance and newer technologies such as LEDs, our products have a greater impact on conserving the environment.

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