Light appearance: 6500K (daylight)</br>Lumens per watt: 89.06</br>Indoor?? commercial and residential use</br></br>Product Description</br></br>Create a cool and refreshing environment with the Philips 32-watt 4 ft. T8 daylight linear alto fluorescent light bulbs (30-pack). these light bulbs cast an arctic white light making them ideal for bathrooms?? laundry rooms or any room. The long-lasting bulbs can shine up to 30??000 hours using 2??850 lumens. These bulbs feature alto low-mercury technology for environmentally friendly use.</br><br/>http://www.amazon.com/gp/product/B0165PEZDQ