Suitable for 90 Minute Ceilings and Solid Joists and I-Joists This LED downlight is fire-rated to 90 minutes of protection, meaning the hole you cut to mount your lights is completely resealed, and your ceiling is fortified to extend the time when the fire will spread (in this case, by 90 minutes). A fire-rated downlight like this one can do so because of its built-in intumescent pad that activates when exposed to a specific temperature. When triggered, the pad can block even the tiniest gaps where the fire can pass through. Aside from that, this LED downlight is suitable for solid joists and I-joists , which not many lighting fixtures can offer. So, if you want to ensure the fire protection of your home, choose this LED downlight! Insulation Coverable (Maximum 7w GU10 LED Lamp) Unless stated in the product description, technical specification or packaging of your lights, don’t cover it with anything. Not all fittings are insulation coverable, so instead of improving the safety of your home, it’ll actually make it worse. This LED downlight is insulation coverable , but before you start laying out your insulations, there’s a condition that you need to follow strictly. You can only put insulation over your lights if you pair it with a GU10 LED bulb not exceeding a maximum of 7w of power . If you choose to use an LED bulb with a higher wattage (given that it’s still within the capacity of the downlight), you cannot put any insulation. Includes a 4. 5w GU10 Bulb - Not Dimmable with Cool White Light When you get this LED downlight, you will get a GU10 LED lamp with it . This bulb can produce 400 lumens maximum brightness and a wide 110-degree beam angle while only consuming 4. 5w of power. Even if you’re using your downlight for extended hours, it will not inflate your electricity bills too much! Aside from that, the GU10 LED bulb included with this LED downlight has a cool white light LED colour. Unlike natural white light with no hints of blue or yellow and warm white li