This is a set of two. For those who are having trouble using the discontinued Palook Ball Premier. For those who want to save energy on their home lighting in Reiwa 5, when electricity costs are soaring. ・Recommended replacement for EFD25 ・Power consumption 8.3w (smallest in class) ・Can also be used for EFD15 【Product Name】 New, unused Panasonic EFD25 replacement LED bulb (100w equivalent) T type, warm white (omnidirectional type) Base: E26 Brightness: 1080lm Rated life: 3000h (approx. 8 times that of EFD) Power consumption: 8.3W 1 piece: 2980 yen ・Please consult us if you are looking for daylight white or daylight color. ・Please consult us if you are looking for EFD15. 【Product Description】 This is a substitute for EFD25EL. It has been discontinued in 2015, and 8 years have passed. Panasonic has released the successor 'LDT6LGST6', but unfortunately, it is equivalent to 60w (suitable for EFD15) and the light output is not enough for EFD25. Especially, be careful with the warm white color. Also, the price is still high, over 3800 yen, when you check online. In the past few years, I have tried various other bulbs as substitutes. I have experienced insufficient brightness and installation failures (photo ⑦), and what I am currently using is the second generation substitute. While maintaining a light output equivalent to 100w, it is even more energy-efficient at 8.3w, and the size is also one size smaller, and it can also be used as a substitute for EFD15, so it is recommended for those who have felt that the brightness was insufficient. I thought that complete LED conversion of my home was still a long way off because I felt that LED bulbs were still expensive, but we have replaced all of them in our house, facing an unprecedented era of soaring electricity costs. If you are thinking the same way, why not try it once and if you like it, why not go all-LED? I am also an amateur like you, and I am neither an electrician nor an expert, so I don't know the details, so I don't think I can answer your questions, so please understand. 【Multiple Purchase Discount】 We cannot offer a discount on a single item, but we do offer a multiple purchase discount. We cannot offer excessive discounts, but please feel free to contact us.