Can be used as a replacement for 2 Lamp T12 Magnetic Ballast Some of the most reviewed replacement ballasts are the AmbiStar 40-Watt 2-Lamp T12 Rapid Start High Frequency Electronic Replacement Ballast with 414 reviews and the Optanium 120/277-Volt 4-Lamp T8 Instant Start Electronic Fluorescent Replacement Ballast with 199 reviews. That's not always the case as sometimes people changed their T12 ballast to be electronic years ago. Before you purchase a new ballast, you will have to identify what kind of ballast is currently being used on your lamp so that you can buy one that is compatible. Hunker may earn compensation through affiliate links in this story. Retrofitting T12 to T8 is a simple ballast and lamp swap. Replacing your T12 fixtures with T8 fixtures is more cost effective than changing out the ballasts, but if you invested a lot in your T12 fixtures and have developed a sentimental attachment, then you may want to invest in changing the ballasts and retaining the fixtures. T12 Fluorescent Light Ballast Replacement: Replacing two T12 fluorescent light fixture magnetic ballasts with one t8 electronic ballast. The T5 uses a 5mm pin spacing as compared to the 13mm spacing on the T8 and T12 lamps. We just upgraded power from anumber 80amp temp to a 200 amp meter main at o... Changing fluorescent fixture from T12 to T8. Top Rated Philips Advance AmbiStar 40-Watt 2-Lamp T12 Rapid Start High Frequency Electronic Replacement Ballast Model# 520395 $ 19 92 $ 19 92. Then, join the other blue wire from your T8 to the two red wires coming from the fixture. 5500 Lumens - 8 ft. T8 LED Tube High Output - Ballast Bypass - 43 Watt - 3500 Kelvin F96T8 or F96T12 Replacement - Recessed Double Contact Base - 120-277 Volt - Case of 10 - … Your ballast must be listed on the ballast … The T12 and T8 have the same size end-caps, so you don't have to do any rewiring for those sockets. Ballasts are not necessarily expensive; you can find a t8 ballast for under 20 dollars. Hello all. Differences Between T8 and T12 Lamps A 48-inch T8 lamp produces 2,600 design lumens using 32 watts, while the same size T12 lamp produces 2,520 design lumens using 40 watts. Because the ballast is specific to the wattage of the bulb, and not necessarily the size, it doesn't matter that the tube is the same length, what matters is that a t12 ballast will push more power than a t8 light is designed to handle. Different light fixtures will have different ballasts. But most people have them operating on a magnetic ballast. It should be marked F(number)T(number). Ballasts can be purchased in your local hardware store. There are 3 types: t12 tubes, t8, and t5 tubes, and the t12 which is the oldest and being phased out and no longer manufactured. The only way around the dilemma is to replace the ballast. Universal (T12 Magnetic or T8 Electronic) Ballast Compatible LED Tubes. But read carefully, because there are safety concerns. Operates 2 F30T12 or F25T12 lamps. 12 Inch LED Tube – G13 T8 LED Lamp – 8 Watts – 880 Lumens – Fluorescent Bulb F13T12 and F13T8 Replacement – Ballast Required – Plug & play LED Tube – Compatible With T8/ T10/ T12 … Replacing your T12 fixtures with T8 fixtures is more cost effective than changing out the ballasts, but if you invested a lot in your T12 fixtures and have developed a sentimental attachment, then you may want to invest in changing the ballasts and retaining the fixtures. Hyperikon 8 Foot LED Tube, T8 T10 T12 75 Watt Replacement (36W), Ballast Bypass, Clear Lens, UL, Daylight White, 4 Pack Rated 4.88 out of 5 based on 50 customer ratings ( 51 Reviews) 4.) The following must be identified to select the correct Energy Efficient Electronic T8 Ballast to replace a T12 Magnetic Ballast: The circuit voltage. Questions of a Do It Yourself nature should be Operates 2 T12 Fluorescent tubes type F34T12, F40T12 or T8/T12 Universal LED Tubes. 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