1. Compatible with T8 or G13 fluorescent lamps. 2. thermal stability makes it ideal for replacing old, rusty, or damaged fluorescent lamp holders. 3. Supports voltage up to AC 250V and current of 2A, suitable for most electronic ballasts with an output voltage up to AC 250V. 4. Made of fireproof ABS material, durable, designed for replacing old fluorescent lamp holders. 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 24 hours Hope you have a pleasant shopping experience!