The TheraBulb® 300W is a game-changer for consumers using 150W and 250W infrared bulbs. Rather than needing to purchase a second bulb when more coverage or deeper tissue penetration is needed, now they can get that same output from a single bulb. When compared with the 150W bulb, TheraBulb® is offering twice the power at the same price! For those who want more infrared and red light than 250 watt bulbs the TheraBulb® 300W delivers that extra boost. Best of all, the 300W bulb is still compatible with clamp lamps available on Amazon and hardware stores.