Identification & Application DAMAR 36991A LED18T8/65K/BP/D/SS 18W 4ft LED T8 Tube 6500K Type B Ballast Bypass 120V The DAMAR 36991A LED18T8/65K/BP/D/SS 18W 4ft LED T8 Tube 6500K Type B Ballast Bypass 120V is a high-performance Damar LED linear replacement lamp designed for Type B single-ended ballast bypass installations. Operating on 120V, this 18W T8 LED tube delivers bright 6500K daylight illumination with an 80 CRI and supports Triac dimming, making it an excellent choice for warehouses, manufacturing facilities, commercial buildings, retail spaces, schools, and other applications where maximum visibility and energy-efficient lighting are required. The lamp features a standard G13 medium bi-pin base and is engineered for direct-wire ballast bypass installation, eliminating the fluorescent ballast for improved reliability and lower maintenance costs. It is safety shielded, rated for damp locations, and operates in ambient temperatures from -4°F (-20°C) to 113°F (45°C). This lamp is intended for use with Triac dimmers only and is not compatible with fluorescent ballasts or emergency lighting fixtures. Designed for dependable long-term performance, the LED18T8/65K/BP/D/SS is rated for 50,000 hours of service life, significantly reducing maintenance and replacement frequency. Installation should be performed only according to the manufacturer's wiring instructions and all applicable electrical codes. Technical Performance Specifications Brand Damar SKU / MPN 36991A / LED18T8 / 65K / BP / D / SS 120V Product Type LED Linear Lamp Lamp Shape T8 Electrical Wattage: 18W • Voltage: 120V • Triac Dimmable Optical Color Temperature: 6500K • CRI: 80 Mounting / Base G13 Medium Bi-Pin Installation Type Type B Single Ended Ballast Bypass (Direct Wire) Mechanical Safety Shielded • Damp Location Rated Operating Temperature -4°F (-20°C) to 113°F (45°C) Dimensions Diameter: 1.07 in. • Length: 47.75 in. Lifecycle Rated Life: 50,000 Hours Case Quantity 30 Applications Warehouses, Manufacturing Facilities, Commercial Buildings, Retail Stores, Schools, Strip Fixtures, Troffers, Damp Locations, and Other Direct-Wire T8 Retrofit Applications (Not for Emergency Lighting) Documentation See spec sheet.
