Our VDE test specification covers all possible areas of application for lamps and luminaires with HCL control indoors - in schools, hospitals, nursing homes, offices, factories and at home. It is important to mention that different areas of application require different settings. Higher illuminance and cold light are required in schools and offices in order to increase the melanopic effect in the human body and thus the performance in the morning and at noon. In contrast, warm white light with high illuminance and low illuminance in the evening hours is used in hospitals and nursing homes, because here the well-being of the patient is paramount. In many companies and factories, the special case of rotating three-shift operation has to be considered. Here the disturbance of the melanopic effect must be kept as low as possible. This can be achieved by putting together daylight-based lighting with a high proportion of blue. During the night shift, lighting with a low melanopic effect should be realized.
The HCL criteria are verified by CIE S 026, DIN SPEC 5031-100 and other standards. The following test criteria are evaluated in this test:
- Checking the lighting properties such as luminous efficacy, dimming range, color temperature range, color rendering index, color consistency, homogeneity, psychological glare, ratio of melanopic to photopic luminous flux, flicker, stroboscopic effect, energy efficiency class and photobiological safety.
- Checking the light dynamics such as the step size of the change in brightness and color, the accuracy of the light dynamics, the selection of the light scenes and the parameters from the ASTA / DGUV regulation.
- Testing the usability of the operation according to DIN EN ISO 9241-11.