Osram 21W tube lights T5 Lumilux HE Tube Light High Efficiency Fluorescent 6500k Day Light - Pack of 5/ Pack of 10 Pack:Pack of 10 " indicating that it is

" indicating that it is designed to house and protect electrical components

Housing 20000hr lifetime reduces maintenance costs

It also has a refreshing effect on humans and animals

Public Space

Plug and Socket Category: The socket is categorized under "Low voltage

Osram 21W tube lights T5 Lumilux HE Tube Light High Efficiency Fluorescent 6500k Day Light - Pack of 5/ Pack of 10 Pack:Pack of 10 " indicating that it isUp to 20 % more economical than LUMILUX T8. Areas of application Public buildings, Offices, Shops, Supermarkets and department stores, Industry, Outdoor applications only in suitable luminaires. Very good lumen maintenance: 90 % throughout the service lifetime of the lamp. Good color rendering index. Dimmable.