These LED lamps consume extreme low amounts of energy and are very effective. For 240 lumens of light output over six hours, eight kilojoules of energy per hour are sufficient, which a solar module can supply with an output of only three watts. If you dim the lamps, which you can do in three stages, they need even less energy – at 120 lumens, they can be illuminated for 12 hours for example.
The Sundaya lamp leads the field as far as efficiency is concerned. While a conventional light bulb delivers one percent and a low-energy light bulb five to ten percent, the new LED lamp of Sundaya has an efficiency of 23 percent.
Ulitium: with integrated Li-Ion energy storage
Dimension 175 x Ø100 mm
Weight: 0,5 kg
Ulitium 200 White (8Kj/H, 2,2Watt), 240 lumen, Ø100 x 175 mm , 0,5 kg
Ulitium 400 Black (16Kj/H, 4,4Watt),240 lumen, Ø100 x 175 mm , 0,5 kg