Electrical characteristics: Parameter ls-6031-1ls-6031-2 Input voltage ac100~ac277v Color4000k/5800k Led chip3020*4413020*441/ 3020*4 Led w31w31w Luminous flux2400lm2400lm/1300lm/24lm Illumination 2m240lm240lm Power consumption33w33w/16w/1w Power factor(pf)115v>0.9/230v>0.9115v>0.9/230v>0.9 Illumination area410mm x 410mm Viewing angle160 Material of casealuminum + abs + ps Operation life20000hr Dimension603mm(w) x 603mm(l) x 40mm(h) Weight2400g Environmental ratings: Parameter mininum maximum Operating temperature -30c +60c Storage temperature -20c +50c.