LEd Tube Light 18 Watt 4 Feet long,Retrofit Exact Replacennt of T8 40Watt FTL. Clear Power saving of 30Wtts Per hour. Monetarily a clear saving of Rs. 75/- Per month on a usage of 10 Hrs per day. Warranty 2 Years from Date of Invoice. Aluminum Extrusion Housing with Polycarbonate Milky Diffuser. Lumen output - 1800. Fits exactly in your Existing Baton. Just the choke has to be bypassed. Available in Cool White, Neutral White and Warm White Light Color Options.