HF-Selectalume II independent version is the most cost-effective, reliable, slim and affordable fluorescent solution, with highly disruptive technology for energy saving, system flexibility and unsurpassed performance. The cost-saving HF-Selectalume II PLTC SR has a robust design which meets all relevant international safety and performance standards. The HF-S II strain relief is optimized mainly for PL-T/C lamps.HF-Selectalume II is intended for use with indoor lighting fixtures such as spotlights, downlights and recessed luminaries, which are largely used in office,retail, industry, hotel, restaurant and other applications.;The ballast is primarily designed for Indoor application. For outdoor application, the luminaire should be minimum ClassⅠand need to be sufficiently protected against water & dust. The installation should also be guard against any lightening surge or any other necessary electrical protection as deemed in such typical installation & application.