The LH0033 Leviton 13451-020 is a fluorescent tombstone lampholder that is designed for a low profile panel mount. It is made with molded thermosetting urea and copper-alloy, and has double edge contacts and knife-edge contacts. It is also non-shunted and dedicated for T8linear fluorescent lamps. The LH0033 Leviton 13451-020 is comparable or equal to the ALP 216-11, DM Y98E1, 858532 and the HH Fluorescent 1610.