I'm rather thinking about solar light testing facilities for space crafts here, such as ESA's Large Space Simulator. The specs say: 'Intensity level with 19 l

I'm rather thinking about solar light testing facilities for space crafts here, such as ESA's Large Space Simulator. The specs say: 'Intensity level with 19 lamps at 20 kW: 2000 W/m' (6m solar beam diameter) [2] (Also, 'On request, the sun simulator can be equipped with 32 kW lamps'.) [1] http://www.esa.int/Our_Activities/Space_Engineering_Technology/Large_Space_Simulator_LSS http://www.esa.int/Our_Activities/Space_Engineering_Technolo... [2] http://emits.sso.esa.int/emits-doc/ESTEC/AD1-AO-5580.pdf http://emits.sso.esa.int/emits-doc/ESTEC/AD1-AO-5580.pdf