I&#x27;m rather thinking about solar light testing facilities for space crafts here, such as ESA&#x27;s Large Space Simulator.<p>The specs say: 
&#x27;Intensity level with 19 lamps at 20 kW: 2000 W&#x2F;m&#x27; (6m solar beam diameter) [2]<p>(Also, &#x27;On request, the sun simulator can be equipped with 32 kW lamps&#x27;.)<p>[1] <a href="http:&#x2F;&#x2F;www.esa.int&#x2F;Our_Activities&#x2F;Space_Engineering_Technology&#x2F;Large_Space_Simulator_LSS" rel="nofollow">http:&#x2F;&#x2F;www.esa.int&#x2F;Our_Activities&#x2F;Space_Engineering_Technolo...</a><p>[2] <a href="http:&#x2F;&#x2F;emits.sso.esa.int&#x2F;emits-doc&#x2F;ESTEC&#x2F;AD1-AO-5580.pdf" rel="nofollow">http:&#x2F;&#x2F;emits.sso.esa.int&#x2F;emits-doc&#x2F;ESTEC&#x2F;AD1-AO-5580.pdf</a>