***Please note there is a $12.00 One Time Oversize Shipping Fee for 60" lamps. This fee will be added to your invoice at the time your order is processed. D&D Giesemann T5 High Output lamps from Germany incorporate the most advanced fluorescent technology available. Giesemann Actinic+ Lamp Description: T-5 Diameter High Output Lamp - Blue Spectrum Peaks at 450 nm - Supplementation Lamp encourages blueing in SPS coral, minor fluorescing. - Great when used with 10k or 6500k metal halide lamps to encourage bluing in SPS. 450nm peak is similar to Radium Blue metal halide lamps. Other preferred ratios include 1:1 with Sun Lamps, or 2:1:1 Sun/Blue/Actinic for best blend of bluing and fluorescence. *Important Shipping Information: Minimum order of 2 (two) T5 lamps, (Mix & Match), to qualify for our standard shipping fees.