The Onion design was used as an oil or candle lamp in ship's passageways and holds. The Onion sends light all around and down to light steps, walks, landscape or patio. Three feet of brass plated chain and a handmade escutchteon is included. Please see The Seeded Onion and The Optic Onion for different glass.To inquire about the candle option or for help, please call us at 800-606-1612.