Superfish Scaper LED 74 - Compact Aquarium LightingSlim line design LED lighting for open and closed planted aquariums that have a length of between 55 74cm long. Designed for excellent aquarium plant growth and aquascaping with 54 High Power LEDs (28 Watt) with high brightness and long life span (50,000 h). PAR 269 (mol m s), Lux 16100 (lx), Kelvin 7300 (K). The part of the light (400 700 nm) that plants use for photosynthesis is called photosynthetically active radiation (PAR). The higher the PAR,