Radian offers several LED ranges.

For lamps, ceiling lights, suspended or wall lights, Radian has chosen LEDs arranged on two lateral emission lines : direct vision of these sources is therefore avoided.

The lower row of LEDs emits much of the light downwards, in direct lighting, by refraction on a clear polycarbonate plate and then by transmission through a prismatic diffusion plate. The advantage of this refracted emission is twofold : the efficiency of the transmission guarantees a good yield, plus this transmission system guarantees excellent visual comfort thanks to the diffusion surface of this double Refraction-Emission device. Half of the lower flux is emitted in indirect lighting using the same refraction device.

Indirect lighting does not pose a risk of visual aggression; the upper row of LEDs provides most of this diffusion. The LEDs are protected by a translucent sheath that prevents any human contact while ensuring a first dust-seal (the glass closure is recommended to protect the refraction-reflection devices mentioned above).

Part of the flux emitted by the upper row reaches the lower refraction plate to reinforce direct diffusion, and a part is indirectly reflected.

For these direct / indirect lighting devices, Radian chose “mid-power” LEDs, i.e. individual powers between 0.2 and 1 W in order to obtain the best distributed flux over an optimal linearity that is consistent with the Ludic Touch family.