4 x 80 Watt (100 Watt Equiv) R7s / J78 (78mm) Linear Eco Halogen Floodlight Bulb - 1400lm. These eco halogen energy saver R7s linear flood light bulbs use 80W but provide a light output of a standard 100W halogen light bulb, thus using 20% less energy and helping to cut your electricity usage / bill.