Price negotiations welcome! Sizes: 22.5 x 22.5 x 1.65cm (20-type), 29.9 x 29.9 x 1.65cm (27-type), 37.3 x 37.3 x 1.65cm (34-type) Weight: 0.08kg (20-type), 0.105kg (27-type), 0.135kg (34-type) Safe even when turned off, with a faint glow (Hotarukku afterglow function) Approximately 8% brighter lamps (compared to Lifelex Slim) Rated lifespan of 18,000 hours (approximately 1.5 times the lifespan of Lifelex Slim)