Osram LED T8 SubstiTUBE Value 5ft in 4000K (840) for EMag/Mains, is an economic LED tube for electromagnetic control gears or direct wire to Mains. A quick, simple and safe replacement without rewiring (comes with jumper starter), offering energy savings of up to 65% (compared to T8 fluorescent lamp on CCG), with a wide 220 beam angle, and luminous efficiency up to 105 lm/W. These tubes provide Instant-on light, therefore ideally suitable in combination with sensor technology. Very high resistance to switching loads. Also suitable for operation at low temperatures (from -20 to 45). Not suitable for operation with electronic/HF control gear.