Well one thing I don't like is that the inside of the fixture looks to be painted black. That will absorb a lot of light rather than reflect it. If the fixture is placed close enough to the plant, it may still work, but you won't get as much total light. Also, I would use 6500K for both bulbs. Having two different light sources right next to each other would look strange, and daylight bulbs are better for plants anyways.

Hoyas don't need much light to bloom. I know because my neighbor's grew and bloomed 6 ft. from a window without artificial light.

You are obviously doing this for cosmetic reasons because your choices are as practical as jewelry.

Can you return the fixture? For one thing the fixture is designed to aim the light out to the side so it would look strange if you turned the reflectors inward to aim at the plant if they are even adjustable. A single reflector fixture would probably look better. And as someone else said they are painted black which will absorb a lot of the light. Plus $26 plus any shipping seems kind of expensive to me. In fact looking at most online light bulb and fixture sellers their prices tend to be on the high side, especially if you have to include shipping.