Very nice light and heats up my snakes enclosure very well
Chewy has a great selection of day and night heat bulbs. The prices are lower than pet stores for the same products and brands.
The people giving this a 1 star are most likely using a bulb with wattage that is too high for the fixture they have, which causes the bulb to be underpowered and burn out within a few hours, to a few days. Just get the exact wattage for your fixture or lower, and it should last the standard 2400 hours they're designed to.