Liteplan BMM/1-K – Maintained/Non-Maintained Driver

BMM/1-K Common Data

• Suitable for Integral Mounting Applications
• Deep Discharge Protection
• 700mA Constant Current Output
• Extra Long Life LiFePO4 Batteries
• Can be Used for Night Light Purposes
• Can be Supplied with Emergency LED
• Maintained/Non-maintained Operation
• Module TM65.2 Rating – 3.34kg CO2e
• Battery TM65.2 Rating – 1.02kg CO2e

BMM/1-K Electrical Specifications

Part Number BMM/1-K
Input Voltage 230-240 Volts AC – 50/60Hz
Power Rating Maintained 5.7W 31mA λ = 0.75
Power Rating Non-Maintained (standby) * 0.2W 8mA λ = 0.1
Emergency Duration 3-Hours
Battery Type 1/LP38/S/TE
Battery Voltage 3.2V
Battery Capacity 3.8Ah
Charge Current 225mA Nominal
Recharge Time 24-Hours
Discharge Current 900mA Nominal
Ambient Temperature (Ta) 5°C to 35°C
Case Temperature (Tc) Point Case Side (Centre)
Case Temperature (Tc) Max Module 70°C
Case Temperature (Tc) Max Battery 55°C
Module Dimensions 135mm x 30mm x 21mm
Module Fixing Centres 125mm x M4
Battery Dimensions 90mm x 24mm x 28mm
Battery Fixing Centres 80mm x M4
Overall Weight 0.25kg

BMM/1-K Dimensions

Side view

Top view

Internal switchable maintained emergency modules are compact electronic devices installed inside light fixtures. They allow a single luminaire to operate as a standard everyday light (controllable via a wall switch) while ensuring the light automatically turns on using battery power during a mains power failure.

How They Work

Dual Operation: These modules connect to both a permanent live feed (to constantly charge the internal battery) and a switched live feed (to allow normal daily on/off control).

Power Outage Trigger: The module constantly monitors the mains power. If the primary power grid fails, the module immediately switches the light to its internal backup battery.

3-Hour Compliance: UK fire safety regulations typically require these batteries to provide illumination for a minimum of 3 hours to allow for a safe building evacuation.

Key Benefits

Cost & Space Efficiency: Instead of buying and installing separate regular lights and emergency exit lights, you only install one fixture that handles both jobs.

Energy Savings: Because the maintained function is “switchable,” you can turn off the light when a room is not in use, reducing energy consumption and prolonging the LED lifespan.

Aesthetics: They are hidden inside the light fixture, so they do not disrupt the interior design of the space with extra, clunky emergency boxes.

Liteplan are the largest, privately owned emergency lighting component supplier to the UK market, whilst also shipping their products to a worldwide customer base. Established in 1994 by the late Bill Green, the company was successfully run by Bill’s right hand man, Peter Ray for many years. Peter retired in 2022 and Liteplan is now run by the next generation of Bill’s family with his son, Steve Green at the helm as Managing Director and Steve’s brother-in-law, Jonathan Bell as Director of Operations.

Their Business Development Director, Adrian Spicer is a long standing and well respected figure in the world of emergency lighting. His knowledge and stature within the industry are invaluable to them.

Liteplan’s wealth of knowledge extends many years. Their Technical Manager, David French BSc. sits on the committee at ICEL and works closely with The LIA. Their Product R&D Manager, Osman Özgür Rakibet, PhD, takes control of Liteplan’s product road map. His knowledge is steering their evolution and maintaining their position as the innovators of the emergency lighting sector.

Many of Liteplan’s engineers have worked with the company for over 20 years, constantly striving to progress through the our ever evolving CPD scheme to stay at the forefront of the ever changing world of legislation.

Liteplan proudly design all of their products in-house, making product evolution a constant and seamless process. They employ over 60 local personnel, many of whom have been with them for the majority of their existence and they also pride themselves on their unrivalled delivery satisfaction level.

Their 40,000 square foot factory enables them to carry a huge level of stock, thereby fulfilling even the largest of orders with haste. They recently acquired additional warehousing adjacent to their headquarters near London’s M25. This will fuel Liteplan’s global expansion plans for many years to come.