Attwood 5550-24Z1 vs Perko 1311DP2CHR

Buy the Attwood LightArmor all-round light, manufacturer part 5550-24Z1, ASIN B00DMDPTPI, when you want the LED pole whose features say a 24-inch aluminum shaft, a ZAMAK base, a horizontal mount, and 2-mile 360-degree visibility for boats up to 39.4 feet. Buy the Perko telescoping all-round light, manufacturer part 1311DP2CHR, ASIN B0000AZ83J, when you want the 12-volt bulb light whose title says 20 and 1/8 inches, a 16-degree rake, and a 3/4-inch pole, and when you will not treat a dimension cell of 26.5 by 6.13 by 2 inches as that height.

Short version. A Shakespeare 5225-XT and a Perko 1212DP2CHR are antennas and an antenna mount, not these lights. A Blue Sea 6006 and a Perko 8501DP are battery switches. A Ritchie X-10B-M and a Plastimo Iris 50 are compasses. An ACR 2830 and an Ocean Signal 702S-01540 are EPIRBs. A navigation light does not replace a beacon, and a beacon does not replace the all-round white light the rules ask for after sunset.

Who should buy the Attwood, and who should buy the Perko?

Buy 5550-24Z1 if you want the LED all-round, the 24-inch aluminum pole, the horizontal ZAMAK fold-down base, and the feature that limits the claim to boats up to 39.4 feet. Buy 1311DP2CHR if you want the bulb light, the 16-degree rake in the title, the 3/4-inch anodized pole, the locking collar, and the included base, and if you will measure the pole instead of trusting a 26.5-inch dimension cell.

Buy neither if the boat is already over the length the Attwood feature names and you needed the Perko card to say 65 feet. This Perko card does not say that. A dealer page for part 1311DP2CHR says the light is for powerboats under 20 meters, about 65.6 feet, with 2-mile visibility. That is the dealer's sentence. It is not a feature on ASIN B0000AZ83J. If the length of the boat is the reason you are choosing, read the dealer page and the Coast Guard rule yourself, and do not let this article launder the dealer line into an Amazon cell.

What is 5550-24Z1 actually for?

This card is Attwood part 5550-24Z1, ASIN B00DMDPTPI, UPC 022697555243. The features say it provides 2-mile, 360-degree visibility for boats up to 39.4 feet, or 12 meters. They name condensation management, an anti-glare engine, a 24-inch aluminum pole, and a ZAMAK base with a horizontal mount. The color cell says Clear. The lens cell says Polycarbonate. The light-source cell says LED. The description says the series uses a LightArmor fold-down base with single-handed cam-lock operation. It does not print a wattage, a voltage, or an amp draw. Do not invent a 12-volt number just because the Perko card has one.

Thirty-nine and four tenths feet is the feature's boat. A boat at 40 feet is outside that sentence. The feature does not say the lamp becomes illegal on the next inch, and it does not say a longer pole fixes the length. It says what Attwood printed. Fold-down matters when a cover, a bridge, or a trailer needs the pole out of the way. The card says horizontal mount. A vertical surface is a different Attwood base, and it is not this part number.

The photograph on the listing is a straight pole and a round lens. It is not the raked Perko. If a seller's gallery mixes poles, match the model cell before you match the picture.

What is 1311DP2CHR actually for?

This card is Perko part 1311DP2CHR, ASIN B0000AZ83J. The title says a telescoping white all-round pole light and base, 20 and 1/8 inches high, 16-degree rake, 3/4-inch diameter. The features say a clear Fresnel globe with a black polymer top, a chrome-plated zinc alloy base, a locking collar, a 12-volt bulb, a 3/4-inch anodized pole, a mounting base included, and a universal marine fit. The weight cell says 14.4 ounces. The dimension cell says 26.5 inches by 6.13 inches by 2 inches. The model cell says 1311DP2CHR.

Twenty and one eighth inches is the title. Twenty-six and a half inches is the dimension cell. They are not the same height, and a telescoping pole is a bad object to measure from a carton. Use the title for the rated height, and use a tape on the pole if the boat's rule depends on inches above the gunwale. The 16-degree rake is in the title, which matches the bent pole in the photograph. A straight Attwood is not a substitute if the old base on the boat was drilled for that rake.

The feature says a 12-volt bulb. It does not print the bulb's order number. A dealer page for this part names bulb 0337011DP and a spare base, 1059T00DP. Those part numbers are the dealer's. They are not on ASIN B0000AZ83J. Order the bulb from the number printed on the lamp you remove, or from the dealer page you are willing to cite. Do not guess a household bayonet because the card says 12 volt.

A different Amazon listing, ASIN B005W2GAOG, prints three heights for the 1311 family and a line about vessels under 20 meters. That listing is not this ASIN. Do not move its sentence onto 1311DP2CHR. Another listing, B005FCIGMW, repeats the same title and the same part number. If you buy a second ASIN, confirm the model cell still says 1311DP2CHR. This comparison uses B0000AZ83J.

How do you use the length sentence without inventing a rule?

The Attwood feature is the only boat-length sentence on these two cards, and it stops at 39.4 feet. The Perko card is silent. Silence is not a rating for a 65-foot boat. The dealer who stocks 1311DP2CHR is allowed to print the certification he sells. You are allowed to read it there. This page will not pretend the certification was in the Amazon features.

An all-round white light is not a side light, not a stern light by itself, and not a spotlight. The compass comparison and the antenna comparison are the other things a small boat console collects. The battery switch is what feeds a 12-volt bulb if the Perko is the light you mount. The Attwood card never says 12 volts, so do not size a fuse from the Perko's bulb and call it the LED's draw. Neither card prints an amp number.

An EPIRB does not satisfy a navigation-light rule, and a pole light does not satisfy a distress-beacon rule. The ACR and Ocean Signal page is that other problem. Mount the light where the lens is not blocked by a rocket launcher or a bimini. Neither card prints a height above the deck. The pole length is not that height until you know where the base sits.

What actually fails on these two cards?

The Attwood card fails when 39.4 feet is stretched to every boat because the lamp looks bright. It fails when a 12-volt guess is added because marine lights are usually 12 volts. It fails when the fold-down base is mounted on a vertical wall the feature did not name. It fails when a 24-inch pole is compared to the Perko by the Perko's 26.5-inch dimension cell. It fails when condensation management is read as a promise the lens will never fog. The feature claims a system. It does not print a test.

The Perko card fails when 26.5 inches replaces 20 and 1/8 inches. It fails when 14.4 ounces is read as the weight of the pole above the deck rather than the listing's item weight. It fails when a dealer's 20-meter certification is pasted into the features. It fails when the 12-volt bulb is replaced with an LED lamp the card does not name. It fails when Perko 1212 or Perko 8501 is ordered because the brand matched and the model did not. Those are the antenna mount and the switch.

What is this comparison not?

This is not a full navigation-light kit. There are no sidelights on either card. This is not every Attwood pole and every Perko 1311. 5550-24Z1 is the 24-inch horizontal LED. 1311DP2CHR is the 20-and-1/8-inch raked bulb light on ASIN B0000AZ83J. A longer Perko in the same family is a different suffix. This is not a price quote. The price moves. Use the buttons if you want the live listing. This is not legal advice about which light your boat requires. The feature and the dealer page are the documents. The rule book is the rule book.

Spare parts are the other split. The Perko feature says a bulb is part of the light, so a burned filament is a maintenance item. The Attwood feature says LED and never names a lamp to replace. When the LED fails, the card's answer is a new light, not a new bulb. When the Perko bulb fails, the card's answer is 12 volts and a bulb, and the order number lives on the dealer page or on the old lamp. Keep those failure modes apart. A boat that sits all week on a tender still needs the lens above the cover, which is the fold-down claim on the Attwood description and the telescoping collar on the Perko features. Those are two ways to get the lens down. They are not the same base.

So which all-round light should you buy?

Buy the Attwood if you want part 5550-24Z1, ASIN B00DMDPTPI, the LED, the 24-inch pole, the horizontal fold-down base, and the 39.4-foot sentence printed in the features. Buy the Perko if you want part 1311DP2CHR, ASIN B0000AZ83J, the raked bulb pole, the title height of 20 and 1/8 inches, and the included base, and if you will keep the 26.5-inch cell in the carton where it belongs. Buy neither if you needed a length rating the Perko card does not print, or a voltage the Attwood card does not print.

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