) long life
High lumen maintenance 1.1 (2000h not less than 78%).
1.2 The long life (average life expectancy of at least no less than 20000h).
2) Comfort
2.1 high color (2700K color temperature, Ra ≥ 80).
2.2 chroma tolerance of small (<6SDCM).
2.3 batches, different specifications of the lamp color temperature should be consistent.
3) High brightness
3.1 lamp lumen output should meet or exceed the national standard (reduced power to ensure that human life is difficult for standard brightness.)
3.2 The luminous efficiency (lumens per watt, the number of issued, ie, efficiency) to be high.
4) Safety
4.1 can cause a fire.
4.2 can not have a risk of electric shock.
4.3 The packing, given a clear head on the make, model, production date and so on.
5) Good after sales service
5.1 should ensure that the lights meet the requirements of use of the environment, such as energy-saving lamps to be used with matching lamps, according to the actual situation of energy-saving lamps use the appropriate size, power, color temperature.
5.2 accurate analysis of problems, timely replacement of the damaged lights or repair.
