The replacement for my 5 foot LED tube is great, NO reservations. However fitting instructions a little more complicated. .I read the instruction on line regarding removing the starter and or removing the Magnetic or Electronic Ballast, OK I had both a starter and a ballast. It then showed you how the carrier unit must be wired. (couldn't see what wires were going where.). Having removed the starter I was surprised to find a LED starter in with the new tube (Not mentioned).when it arrived .Being a fairly competent man with electricity I was loath to call in an electrician to fit a light bulb. So! in the end I made a decision to fit the tube and plug in the new starter and hope for the best. I did and to my delight it lit up beautifully, so I must have had it wired ok. Oh! what fun.