What is wrong with area lights?

Area lights not reflecting in diffuse shader???!


Can anyone explain?

Diffuse is just that, a diffuse component (meaning the shader doesn’t actually reflect anything).

Mix a glossy shader into the material to make it reflect the light.

Have you tried this? Also Why do Emissive materials not shine bright anymore. Seems like a problem

Just increase the power of the emission shader.

Since you seem to be fairly new at using Cycles, I suggest you read through the manual before moving any further.

Sorry, but it’s just different in 2.78. I’ve been using cycles for 8 months.

share your file, don’t make us guess… what?

Blend https://drive.google.com/file/d/0B5ZXRIpl-Z6vc0hjbGZwcnlLTU0/view?usp=sharing

Better Blend https://drive.google.com/file/d/0B5ZXRIpl-Z6veWJqaTVhMnRKYVU/view?usp=sharing

You got Clamp Direct set to 0.3. It limits the maximum output of any surface.