Suitable for use in offices, shops, reception areas, restaurants, hotels, schools, hospitals LED replacement for 4x36W T8 fluorescent lay-in modular panel A high quality PP thermoplastic diffuser ensures that light transmission is maximised into the lit space and provides a TP(a) rating to comply with fire regulations 50,000 hour average lamp life. Up to 5 times that of a standard fluorescent lamp Fits into standard sizes of ceiling grid - 15mm and 24mm High efficacy of 109lm/W Wide operating ambient temperature range of -20°C to +40°C Suspension kit available (RAMSUS-6W) Plug and play 3-hour emergency pack available (R3EMPK4-PSU) Suitable for switching by PIR, Microwave or Photocell 1-10V and DALI dimmable driver and 3 hour emergency options available