6 Pack MR16 LED Light Bulbs, 90% Energy Saving, ELECCTV 12V 5W GU5.3 Base Spotlight with 3000K Warm White 450 lm 50W Equivalent Halogen Replacement Led light lights: The MR16 LED bulbs are ideal for accentuation lighting and halogen light replacement, available for indoor use places where energy saving and high color rendering index lighting are needed Economical:Not only be delivered lower running costs, but also higher life cycles. It only uses 5W of energy, which means your electricity bills will be significantly lower when switching to LED. And this 5W MR16 will last up to 40,000 hours Unlike halogens of short duration. Easy to set up: just replace your ordinary MR16 halogen bulbs with the standard MR16 shape LED bulbs, easily fitted to the GU5.3 base. Pls Note:Brightness same as the 50W halogen bulbs, but Save 90%. If find your existing transformer is not compatible with these 12V LED lights.Please check carefully whether the fixtures require new transformers. Warranty:We have been do any tested it and you can buy it safely. We will provide 2-year product warranty, as well as Customer Service & Technical Support, if anything,please contact us and we will provide superior service.