The LH0760 BJB 26.290.4011 is a nonshunted fluorescent or LED tubular tombstone / socket / lampholder. It is rotary locking which prevents the lamp from falling out and has a locating post / stop / pin. It accomodtes G13 base T8 or T12 tubular fluorescent or LED lamps. It also has flexible mounting wings for esy push fit mounting.