The K-Tool Trouble Light LED Retrofit, No. KTI3379, has a twist-on module that converts an incandescent trouble light into an LED. It comes equipped with 30 high-powered SMD LEDs to equal 300 lumens. The KTI3379 has a rubber bumper to protect the unit and a folding hanging hook that fits into the head. The Trouble Light LED Retrofit is covered by a one-year limited warranty.