Interchangeable LED Module in 2, 4 or 6 Watts up to 345 lumens; Interchangeable UV & Shock Resistant Silicone Optic; 2700K (80 & 90 CRI) or 3000K (80 CRI); Thermally Integrated and Field Serviceable LED Module; Dimmable to <10 percent Triac/Forward Phase) via compatible Transformer; Compatible w/ 12V AC/DC ELV or MLV Transformers; Also available with Rigid and Hanging Mount Options (See HDL11-RM and HDL11-HL); Pre-assembled System for Easy Installation; Compatible with Catenary Cable up to 1/4 dia. (by others); Rigid Mount utilizes Swivel-Pro allowing up to 15 of cable swag; Cable Brake System prevents luminaire slippage; J-box and Luminaire Machined from Solid c3600 Brass Alloy; UL Approved System; Also available with Non-Catenary Rigid and Hanging Mount Options (See HDL11-RM and HDL11-HL)