After comparing with at least 7/8 other items, I chose those there: - Low: 29 - Bright 1700 Lumen - Small 22.5 X 22.5 CM - 3 modes (warm white, daylight white and cold) with on / off output ==> Once received, Qty 4, in 2 working days: - Good quality - Operation OK - Well wrapped with protective foam ___ I expected for reliability - I trust I use LED bulbs (standard E27) for 2 years already