The Voronoi II bulb from Tala has an elongated, droplet shape. Its singular filament wraps around a central column, ideal for bringing a striking, decorative touch to your existing light fitting. This bulb is best paired with Tala's Brass pendant ceiling light. Worth Knowing This table is a guide to show you the equivalent bulb wattage across halogen, LED and traditional bulbs. Traditional WattageHalogen EquivalentLED EquivalentLumens25W18W4W250+40W28W5.5W-6W470+60W42W8W-8.5W806+75W53W11W1055+100W70W13W1521+ Watts vs Lumens A bulb's watt rating indicates how much energy it uses. The higher the watt, the more energy it requires. Lumens is a measure of brightness. The higher the number of lumens, the brighter the light.