Stra is available in four versions that differ in the way the optics are adjusted: manually, with a motor or fixed. Motorised adjustment allows users to position the light beam ±10°, using an infrared remote control. The versions with one or two independent optical groups, are adjusted manually; each is tiltable through ±15° (x- axis) and ±30° (y-axis). These can be fitted with two optics with different beams. The version with fixed optics is available with a white light (2,700K, 3,000K and 4,000K) and RGBW. It can be fitted with an elliptical magnetic filter so that the beam can be adjusted externally without having to remove the device from its installation.