***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. ATI True Actinic 03 T5 HO Aquarium Lamps. 100% "actinic blue" bulb which produces a spectrum that peaks at 420nm producing a spectrum that encourages ultimate fluorescence and coral enhancement in capable corals. Recommended Use: as a supplement to metal halides or in combination with other T5 bulbs. *Important Shipping Information: Minimum order of 2 (two) T5 lamps, (Mix & Match), to qualify for our standard shipping fees.