... for water treatment,hospital,air purifying etc UVC 36wT5&T8 Germicidal lampPower:4w/6w/8w/10w/15w/20w/ ... 30w/40wDiameter of tube:T5(16mm)/T8(25.4mm)Base:G5/G13Wavelength:254nm,184nmUsed for various sterilizers,air purifiers,water treatment ... >5000hG13DTD20wGL20w0.370A50-64V254nm>5000hG13DTD30wGL30w0.365A86-106V254nm>5000hG13DTD40wGL40w0.430A93-113V254nm>5000hG13 UVC 36w