Using this pendant lamp is easy. First, hard - wire it with the canopy into the ceiling. Then, insert an E26 bulb with a maximum of 60 watts (you'll need to buy the bulb separately). The lamp will provide a broad, downward light to brighten up your space. When it comes to the diffuser, it's easy to remove if you want to clean it or change the look. Just take it out and put it back inside the shade. For maintenance, keep the lamp clean by gently wiping the shade with a soft cloth. Avoid using harsh chemicals as they may damage the finish of the spun aluminum or copper shade. Also, check the fabric - covered cord regularly for any signs of wear. If you're not satisfied with the product, you can return it within 30 days according to our return policy.