This kind of cold cathode bulbs are our patents products, and only our company use cold cathode lamp as light source in the world, very special and high quality. it also can develop by customize for any shape and colour, base. i am sure you would be very special too with others in lighting line.

For color temperature 4000k, 5w lamp brightness output lumen around:
80-100lm, 7w lamp around 110-130lm.

It's lifetime span more than 15000hrs.the cost would be slightly different with it's outline.

This kind of light source are very special  with CFL, and match your lighting lines.

If you intend to buy some samples for evaluating, kindly let me know