Direct relamp and replace the 18 watt fluorescent bulbs F30"T12, F30"T8, F25T12, F21T8, F18T8, FO21 without rewiring or modification. The LED lamp is powered by the existing ballast, so you can avoid costly electrical work. This delivers an instant ROI. Designed for flexible compatibility - T8 diameter tube lighting that fits T8, T10, and T12 fixtures - Uses Medium Bi-Pin base or G13 base with pin spacing 13 mm and end connectors - Works in a wide range of linear lamp installations without changing the fixture Light distribution and efficiency - All plastic diffuser and construction for better light distribution and fewer spot reflections - Energy saving of 33% (from 18 watts to 12 watts) with a brightness of 1320 lumens Ballast compatibility - The T8 LED lamp works with traditional magnetic ballasts and electronic ballasts - Fully compatible with Instant Start, Programmed Start, Rapid Start ballasts and legacy pre-heat magnetic ballasts Applications and use scenarios - Office and conference room linear fixtures that currently use fluorescent tubes - Retail store aisles, display lighting, and back-of-house areas needing bright, even illumination - Warehouses, workshops, and manufacturing facilities that rely on reliable, long-lasting tube lighting Notes on installation and performance - Designed to replace 18 W fluorescent tubes directly, with no rewiring required - Operates on the existing ballast to simplify replacement and minimize downtime Key attributes at a glance - Lamp type: T8 LED replacement tube - Wattage: 12 W (replacement for 18 W fluorescent) - Lumen output: 1320 lm - Base compatibility: Medium Bi-Pin / G13, 13 mm pin spacing, end connectors - Diameter: T8 - Ballast compatibility: Magnetic and electronic ballasts, including Instant Start, Programmed Start, Rapid Start, and legacy pre-heat systems - Construction: All plastic diffuser for improved light distribution and reduced reflections This description preserves the original product’s models, functions, and performance while presenting clear, customer-friendly benefits and practical applications.