... efficiency monocrystalline silicon,25-year lifetime,140W*1pc; *light source:LED lamp with high-lumination and more than 10,000-hour ... CertificatesTUV,SONCAP,IEC, CE,ROHS LED lamp: Original CREE LED from USA,24V60W,30P of 3W LED,104-107Lm/W,40lux/6M,6000K ... high,steel, with galvanizing treatment Working time:5h fullpower+5h semipower Back up time:3 nights 60W LED light with competitive price and ...