e-14261 black finish metal box. 12v 24w straight filament lamp. lamp holder, with 1m of twin flex, is mounted in sliding metal bridge piece which provides sufficient adjustment to covering, parallel or diverging rays. box has slots to support a cylindrical lens & a triple slit screen. extra slots are provided for filters. dimensions 182x61x115mm approx. supplied complete with lamp & triple slit but without lenses or filters. moq:-500 pcs, all prices are ex-works.