Linear Halogen Bulbs are Widely Used in Floor Lamps, Wall fittings, garden floodlights, Security lights, showroom, stage and studio lights, landscape lights, etc. Quality Energy-Saving Linear Halogen Lamps With Heat-Resistant Iodine Tungsten Filament. Mercury-Free Easy Installation With Standard Double Ended R7s Base. Simply Screw Bulbs into the R7s Sockets and no Extra Tools Needed. Instantaneous Light Is Fully Dimmable. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 336 hours Hope you have a pleasant shopping experience!