Led bar aluminum base power of 10 W, operates from 220 V (without driver). 4 led light source easily replace fluorescent lamp type, Armstrong and reduces the consumption of electric.energy 2.5 times. Working in the temperature range from -50 to +70. Not terrible surges of voltage from 160 V to 280 V. Works not less than 50 000 hours continuously. Simple installation (retrofitting). Explain everything and tell. Good luminous efficacy (100 LM/W.) 24 month warranty with proper maintenance. The products are certified in Russia. It is possible to refit our forces. Write (you), call.