The lamb board permits the investigation and the comparison of light bulb, energy saving lamp and LED bulb.
All illuminant have the same brightness and can be switched on individually.
Technical Data:
Light bulb: 25W
LED-bulb 4W Filament
LED-bulb 4W
Operating Voltage: 230V/ 50/60Hz
Sockets E14
Dimensions: 297 x 114 x 210 mm (HxBxT)
Weight: 1,8 kg