Looks like this is the product: https://www.ikea.com/us/en/p/gullsudare-pendant-lamp-shade-w...
replyThey pair it with a 2.8W bulb: https://www.ikea.com/us/en/p/solhetta-led-bulb-e26-450-lumen...
Less than an ancient phone charger. OP’s flat will be fine.
No one is lighting a room with a 2.8W LED (equivalent to a 25W incandescent). That is barely enough light for a focused desk lamp.
reply40W equivalent, if you read the link.
replyAnd in OP’s pictures, I totally believe that’s the bulb they’re using. Notice they have a desk lamp for up close work, and a freaking enormous window to let in sunlight. No need to flood the space with light with the hanging pendant thing.