凯西尔A350 review, just about the best stand alone LED spotlight for aquarium corals

By almost any metric, the Kessil A350 and A350w are some of the best and most feature rich LEDspotlights曾经为水族馆中生长的珊瑚而制造。在Kessil A150W LED聚光灯下取得了广泛的成功之后，A350和A350W将这个水族馆LED聚光灯带到了新的水平，并以小而轻的外形颜色，多种LED颜色，两个手动控制的频道，听不清的主动冷却和一个积极的价格冷却和一个积极的价格频道指出了班上其他任何东西。所有这些功能在纸面上都很好，但是Kessil A350在今年大部分的大部分时间里都成功地进行了巡回演出后，获得了更大的信誉。

The Kessil Tuna Blue LED spotlight uses a密集的LED矩阵阵列坐在普通的初级镜头下面。在Kessil Tuna Blue A350W中，单独的镜头足以产生约140度的光束角度，在A350中，形式或反射器的次级视神经可将扩散降低到约60度。金枪鱼蓝使用vapor heatsink like the Kessil H350to keep the size really small, only four inches in diameter and three inches tall in the A350w, 3.75 inches tall in the reflector-equipped A350.

而Kessil A150W有三种颜色，金枪鱼蓝色的所有颜色都立即内置。在A350和A350W中，Kessil Tuna Blue的LED数组都相同，并混合了不同的颜色，分为手动可控的白色和蓝色通道。金枪鱼蓝色LED聚光灯外壳的单个电位仪可让用户手动调整亮度和tunethe level of blue the light is emitting, but at the moment there is no way to produce natural dawn/dusk cycles or even timer functions.

We’ve been using the Kessil A350 on a 24 inch cube for most of 2012 and so far it has turned out to be the best, smallest stand-alone LED light which we’ve yet used on an aquarium. Before we delve into how the light looksin坦克,我们必须指出,Kessil A350really plays the part of the LED spotlight with a tiny presence that really lets the aquarium shine, pun intended. Whereas some of the super large LED spotlights use massive amount of passive heatsinking to keep LEDs cool, the tiny package of the Kessil A350 is very lightweight, making it very easy to hang and even to squeeze into existing lighting setups.

尽管Kessil A350是90瓦,它只有42 LEDs running at a little over two watts each, so don’t think for a second that the A350 can hold a candle to a 100 watt multichip LED spotlight with one hundred, one watt LEDs. Even with the advanced performance of the dense matrix array, and the superior color mixing that comes with it. a discrete 100-watt multichip running at one-watt-per-LED is still more efficient at generating photons. That being said, you wouldn’t use a single color multichip LED spotlight on a reef tank but you can totally get by with just Kessil Tuna Blues for growing corals. Over the last six months the Kessil A350 has done an excellent job of growing and coloring a wide range of common aquarium corals including leathers, softies, zoanthids, acans, Euphyllia, disc corals and a range of differentTurbinaria物种。

That being said, we personally backed up the Kessil A350 with an A150w mostly to diminish the effects of hard shadows that comes from having a single point source, even though the Kessil A350 produces plenty of light in multiple colors for great looking corals. With our unit mounted 12 inches (25cm) above the water surface, we measured a maximum PAR of 325 mmol right below the water surface and 75 umols at the center of the glass. Better yet, a foot underwater the PAR was still bright and incredibly even at 125 umols in the center and 90 umols near the center of the tank walls. As an added bonus, if you are down with the stony corals the Tuna Blue delivers a small amount of UV light with about 1 w/m2 at the water surface and about a quarter of that throughout the tank at 12″ deep, 24 inches from the light.

凯西尔’s A350 is more than capable of lighting up four square feet of coral growing real estate, and the LED spotlight form factor preserves top-down views that is great for LPS and frag tanks. At $399 the 90 watt Tuna Blue is a better option than getting two A150w spotlights, but its PAR output is more inline with the equivalent of a 75 watt multichip LED which doesn’t exist, so a little more than a 50 watt but a lot less than what you’d expect from a properly driven 100 watt multichip LED spotlight.

The Tuna Blue is a little bluer light than you’d use for SPS corals so if you want warmer, “bright” displays dominated by SPS corals, or if you want more features like dawn/dusk, automatic dimming and timer functions, a full fledged LED fixture is still the better ticket. However for sheer useful coral coloring and growing light, especially for popular LPS, zoanthids and chalice corals, the Kessil Tuna Blue in its A350 and A350w flavors are one of the best LED packages in the aquarium hobby.

FEATURES

• Superior Optics: Expertly designed optics effectively directs spectrum-specific light for deeper penetration into aquariums.
• Dense Matrix LED: Generations ahead. Unparalleled high-power, 86.5W dense LED array emits intensely bright light.
• 蒸气冷却：高级蒸气冷却热管理系统保持LED有效运行。

PRODUCT SPECIFICATIONS

• Illuminator Power Consumption 86.5 Watt Maximum
• Listed Power Supply Input 100-240 VAC 47-63 Hz Output 24 VDC, Maxiumum 1.87A

BEST PRACTICES FOR INSTALLATION AND MAINTENANCE

• 为了将LED悬挂在木材上，木材，声学或类似纹理的天花板上使用水族馆，安装金属钩子并用戒指悬挂光。金属钩的直径应至少为2.5mm，螺纹数至少为6。
• For sufficient airflow, the intake and venting holes should be at least 12 inches from surrounding obstructions.
• 凯西尔recommends A350 lights to be placed 1 to 2 feet above the aquarium being illuminated.
• 将灯的电源插入具有正确规格的插座。
• Do not use the A350 lights outdoors. They are intended for indoor use only.
• 保持通风孔和风扇避开灰尘。要清洁风扇，请将二氧化碳（或类似）防尘器的尖端插入一个排气槽中并喷洒。
• 保持扩散器（镜头）清洁。如果扩散器被水，灰尘或其他颗粒污染，请用异丙醇清洁。将棉签或餐巾弄湿异丙醇中，并轻轻擦拭扩散器的表面，然后干燥。

制造商保修
凯西尔warrants, to the original buyer, all of its products to be free from defects in both workmanship and material for a period of two years from the date of purchase. Kessil will replace or repair to proper working condition any products that are returned under warranty. Products repaired or replaced under warranty are only warranted for the remaining unexpired period of time of the original warranty.