Wat does DEPO stand for?

[eg-stylin]

i want to buy lights for my car but some of the stuff says its DEPO? wat does this mean? is it good or bad quality?

[SPEEDCORE]

Its the brand. OEM quality if you ask me going by the EK headlights I bought.

[55EXX]

the brand and style. depo is those red and white ones that are crystal. quality is comparable to oem. they should have no problem with water