Electronic Parameter: the max wattage is 660W and the maximum voltage is 600V; Those fluorescent lamp holders are fit for all kind of T8 T10 T12 fluorescent tubes Easy to Install: these non shunted LED tombstones are frequently applied for both dual end powered and single end power fluorescent tubes, and to connect with 18 gauge power wires Fireproof and Reliable: made of PBT material that is safe from fire, those T8 lamp holder are suitable for retrofitting your fluorescent fixtures to LED tubes, replacing old florescent lamp holders and more, you for a long time Wide Application: you might need those T8 fluorescent lampholders everywhere in your , home, basement and closet where a light retrofit is greatly in need Ideal for 4ft LED Bulbs: this T8 non shunted socket are nicely compatible with T8 4ft led bulbs and other T10 T12 fluorescent tubes, Weight: 1.86621304783 Pounds, Manufacturer: Prterver